MEDIUM: log: change a few log tokens to make them easier to remember

Some log tokens have evolved in a way that is not completely logical.
For example, frontend tokens sometimes begin with an 'f' and sometimes
with an 'F'. Same for backend and server.

So let's change a few cases without disrupting compatibility with existing
setups :

  Bi => bi
  Bp => bp
  Ci => ci
  Cp => cp
  Fi => fi
  Fp => fp
  Si => si
  Sp => sp
  cc => CC
  cs => CS
  st => ST

The old ones are still supported but deprecated and will be unsupported by
the 1.5 release. However, a warning message is emitted when they're encounterd
and it indicates what token should be used to replace them.
diff --git a/doc/configuration.txt b/doc/configuration.txt
index f7aa1a3..b1c20e3 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -10223,7 +10223,7 @@
 8.2.4. Custom log format
 ------------------------
 
-The directive log-format allows you to custom the logs in http mode and tcp
+The directive log-format allows you to customize the logs in http mode and tcp
 mode. It takes a string as argument.
 
 HAproxy understands some log format variables. % precedes log format variables.
@@ -10249,18 +10249,18 @@
 
 At the moment, the default HTTP format is defined this way :
 
-    log-format %Ci:%Cp\ [%t]\ %ft\ %b/%s\ %Tq/%Tw/%Tc/%Tr/%Tt\ %st\ %B\ %cc\ \
-               %cs\ %tsc\ %ac/%fc/%bc/%sc/%rc\ %sq/%bq\ %hr\ %hs\ %{+Q}r
+    log-format %ci:%cp\ [%t]\ %ft\ %b/%s\ %Tq/%Tw/%Tc/%Tr/%Tt\ %ST\ %B\ %CC\ \
+               %CS\ %tsc\ %ac/%fc/%bc/%sc/%rc\ %sq/%bq\ %hr\ %hs\ %{+Q}r
 
 the default CLF format is defined this way :
 
-    log-format %{+Q}o\ %{-Q}Ci\ -\ -\ [%T]\ %r\ %st\ %B\ \"\"\ \"\"\ %Cp\ \
+    log-format %{+Q}o\ %{-Q}ci\ -\ -\ [%T]\ %r\ %ST\ %B\ \"\"\ \"\"\ %cp\ \
                %ms\ %ft\ %b\ %s\ \%Tq\ %Tw\ %Tc\ %Tr\ %Tt\ %tsc\ %ac\ %fc\ \
-               %bc\ %sc\ %rc\ %sq\ %bq\ %cc\ %cs\ \%hrl\ %hsl
+               %bc\ %sc\ %rc\ %sq\ %bq\ %CC\ %CS\ \%hrl\ %hsl
 
 and the default TCP format is defined this way :
 
-    log-format %Ci:%Cp\ [%t]\ %ft\ %b/%s\ %Tw/%Tc/%Tt\ %B\ %ts\ \
+    log-format %ci:%cp\ [%t]\ %ft\ %b/%s\ %Tw/%Tc/%Tt\ %B\ %ts\ \
                %ac/%fc/%bc/%sc/%rc\ %sq/%bq
 
 Please refer to the table below for currently defined variables :
@@ -10270,17 +10270,12 @@
   +---+------+-----------------------------------------------+-------------+
   |   | %o   | special variable, apply flags on all next var |             |
   +---+------+-----------------------------------------------+-------------+
-  |   | %B   | bytes_read                                    | numeric     |
-  |   | %Ci  | client_ip                                     | IP          |
-  |   | %Cp  | client_port                                   | numeric     |
-  |   | %Bi  | backend_source_ip                             | IP          |
-  |   | %Bp  | backend_source_port                           | numeric     |
-  |   | %Fi  | frontend_ip                                   | IP          |
-  |   | %Fp  | frontend_port                                 | numeric     |
+  |   | %B   | bytes_read           (from server to client)  | numeric     |
+  | H | %CC  | captured_request_cookie                       | string      |
+  | H | %CS  | captured_response_cookie                      | string      |
   |   | %H   | hostname                                      | string      |
   |   | %ID  | unique-id                                     | string      |
-  |   | %Si  | server_IP                                     | IP          |
-  |   | %Sp  | server_port                                   | numeric     |
+  | H | %ST  | status_code                                   | numeric     |
   |   | %T   | gmt_date_time                                 | date        |
   |   | %Tc  | Tc                                            | numeric     |
   |   | %Tl  | local_date_time                               | date        |
@@ -10289,17 +10284,20 @@
   |   | %Ts  | timestamp                                     | numeric     |
   |   | %Tt  | Tt                                            | numeric     |
   |   | %Tw  | Tw                                            | numeric     |
-  |   | %U   | bytes_uploaded (from client to server)        | numeric     |
+  |   | %U   | bytes_uploaded       (from client to server)  | numeric     |
   |   | %ac  | actconn                                       | numeric     |
   |   | %b   | backend_name                                  | string      |
-  |   | %bc  | beconn                                        | numeric     |
+  |   | %bc  | beconn      (backend concurrent connections)  | numeric     |
+  |   | %bi  | backend_source_ip       (connecting address)  | IP          |
+  |   | %bp  | backend_source_port     (connecting address)  | numeric     |
   |   | %bq  | backend_queue                                 | numeric     |
-  | H | %cc  | captured_request_cookie                       | string      |
-  | H | %rt  | http_request_counter                          | numeric     |
-  | H | %cs  | captured_response_cookie                      | string      |
+  |   | %ci  | client_ip                 (accepted address)  | IP          |
+  |   | %cp  | client_port               (accepted address)  | numeric     |
   |   | %f   | frontend_name                                 | string      |
+  |   | %fc  | feconn     (frontend concurrent connections)  | numeric     |
+  |   | %fi  | frontend_ip              (accepting address)  | IP          |
+  |   | %fp  | frontend_port            (accepting address)  | numeric     |
   |   | %ft  | frontend_name_transport ('~' suffix for SSL)  | string      |
-  |   | %fc  | feconn                                        | numeric     |
   | H | %hr  | captured_request_headers default style        | string      |
   | H | %hrl | captured_request_headers CLF style            | string list |
   | H | %hs  | captured_response_headers default style       | string      |
@@ -10308,13 +10306,15 @@
   |   | %pid | PID                                           | numeric     |
   | H | %r   | http_request                                  | string      |
   |   | %rc  | retries                                       | numeric     |
+  | H | %rt  | http_request_counter                          | numeric     |
   |   | %s   | server_name                                   | string      |
-  |   | %sc  | srv_conn                                      | numeric     |
+  |   | %sc  | srv_conn     (server concurrent connections)  | numeric     |
+  |   | %si  | server_IP                   (target address)  | IP          |
+  |   | %sp  | server_port                 (target address)  | numeric     |
   |   | %sq  | srv_queue                                     | numeric     |
   | S | %sslc| ssl_ciphers (ex: AES-SHA)                     | string      |
   | S | %sslv| ssl_version (ex: TLSv1)                       | string      |
-  | H | %st  | status_code                                   | numeric     |
-  |   | %t   | date_time                                     | date        |
+  |   | %t   | date_time      (with millisecond resolution)  | date        |
   |   | %ts  | termination_state                             | string      |
   | H | %tsc | termination_state with cookie status          | string      |
   +---+------+-----------------------------------------------+-------------+
diff --git a/src/log.c b/src/log.c
index e5d4ce8..270fd57 100644
--- a/src/log.c
+++ b/src/log.c
@@ -63,6 +63,7 @@
 	int mode;
 	int lw; /* logwait bitsfield */
 	int (*config_callback)(struct logformat_node *node, struct proxy *curproxy);
+	const char *replace_by; /* new option to use instead of old one */
 };
 
 int prepare_addrsource(struct logformat_node *node, struct proxy *curproxy);
@@ -70,59 +71,74 @@
 /* log_format variable names */
 static const struct logformat_type logformat_keywords[] = {
 	{ "o", LOG_FMT_GLOBAL, PR_MODE_TCP, 0, NULL },  /* global option */
-	{ "Ci", LOG_FMT_CLIENTIP, PR_MODE_TCP, LW_CLIP, NULL },  /* client ip */
-	{ "Cp", LOG_FMT_CLIENTPORT, PR_MODE_TCP, LW_CLIP, NULL }, /* client port */
-	{ "Bp", LOG_FMT_BACKENDPORT, PR_MODE_TCP, LW_BCKIP, prepare_addrsource }, /* backend source port */
-	{ "Bi", LOG_FMT_BACKENDIP, PR_MODE_TCP, LW_BCKIP, prepare_addrsource }, /* backend source ip */
-	{ "Fp", LOG_FMT_FRONTENDPORT, PR_MODE_TCP, LW_FRTIP, NULL }, /* frontend port */
-	{ "Fi", LOG_FMT_FRONTENDIP, PR_MODE_TCP, LW_FRTIP, NULL }, /* frontend ip */
-	{ "Sp", LOG_FMT_SERVERPORT, PR_MODE_TCP, LW_SVIP, NULL }, /* server destination port */
-	{ "Si", LOG_FMT_SERVERIP, PR_MODE_TCP, LW_SVIP, NULL }, /* server destination ip */
-	{ "t", LOG_FMT_DATE, PR_MODE_TCP, LW_INIT, NULL },      /* date */
+
+	/* please keep these lines sorted ! */
+	{ "B", LOG_FMT_BYTES, PR_MODE_TCP, LW_BYTES, NULL },     /* bytes from server to client */
+	{ "CC", LOG_FMT_CCLIENT, PR_MODE_HTTP, LW_REQHDR, NULL },  /* client cookie */
+	{ "CS", LOG_FMT_CSERVER, PR_MODE_HTTP, LW_RSPHDR, NULL },  /* server cookie */
+	{ "H", LOG_FMT_HOSTNAME, PR_MODE_TCP, LW_INIT, NULL }, /* Hostname */
+	{ "ID", LOG_FMT_UNIQUEID, PR_MODE_HTTP, LW_BYTES, NULL }, /* Unique ID */
+	{ "ST", LOG_FMT_STATUS, PR_MODE_HTTP, LW_RESP, NULL },   /* status code */
 	{ "T", LOG_FMT_DATEGMT, PR_MODE_TCP, LW_INIT, NULL },   /* date GMT */
+	{ "Tc", LOG_FMT_TC, PR_MODE_TCP, LW_BYTES, NULL },       /* Tc */
 	{ "Tl", LOG_FMT_DATELOCAL, PR_MODE_TCP, LW_INIT, NULL },   /* date local timezone */
-	{ "Ts", LOG_FMT_TS, PR_MODE_TCP, LW_INIT, NULL },   /* timestamp GMT */
-	{ "ms", LOG_FMT_MS, PR_MODE_TCP, LW_INIT, NULL },       /* accept date millisecond */
-	{ "f", LOG_FMT_FRONTEND, PR_MODE_TCP, LW_INIT, NULL },  /* frontend */
-	{ "ft", LOG_FMT_FRONTEND_XPRT, PR_MODE_TCP, LW_INIT, NULL },  /* frontend with transport mode */
-	{ "b", LOG_FMT_BACKEND, PR_MODE_TCP, LW_INIT, NULL },   /* backend */
-	{ "s", LOG_FMT_SERVER, PR_MODE_TCP, LW_SVID, NULL },    /* server */
-	{ "B", LOG_FMT_BYTES, PR_MODE_TCP, LW_BYTES, NULL },     /* bytes from server to client */
-	{ "U", LOG_FMT_BYTES_UP, PR_MODE_TCP, LW_BYTES, NULL },  /* bytes from client to server */
 	{ "Tq", LOG_FMT_TQ, PR_MODE_HTTP, LW_BYTES, NULL },       /* Tq */
-	{ "Tw", LOG_FMT_TW, PR_MODE_TCP, LW_BYTES, NULL },       /* Tw */
-	{ "Tc", LOG_FMT_TC, PR_MODE_TCP, LW_BYTES, NULL },       /* Tc */
 	{ "Tr", LOG_FMT_TR, PR_MODE_HTTP, LW_BYTES, NULL },       /* Tr */
+	{ "Ts", LOG_FMT_TS, PR_MODE_TCP, LW_INIT, NULL },   /* timestamp GMT */
 	{ "Tt", LOG_FMT_TT, PR_MODE_TCP, LW_BYTES, NULL },       /* Tt */
-	{ "st", LOG_FMT_STATUS, PR_MODE_HTTP, LW_RESP, NULL },   /* status code */
-	{ "cc", LOG_FMT_CCLIENT, PR_MODE_HTTP, LW_REQHDR, NULL },  /* client cookie */
-	{ "cs", LOG_FMT_CSERVER, PR_MODE_HTTP, LW_RSPHDR, NULL },  /* server cookie */
-	{ "ts", LOG_FMT_TERMSTATE, PR_MODE_TCP, LW_BYTES, NULL },/* termination state */
-	{ "tsc", LOG_FMT_TERMSTATE_CK, PR_MODE_TCP, LW_INIT, NULL },/* termination state */
+	{ "Tw", LOG_FMT_TW, PR_MODE_TCP, LW_BYTES, NULL },       /* Tw */
+	{ "U", LOG_FMT_BYTES_UP, PR_MODE_TCP, LW_BYTES, NULL },  /* bytes from client to server */
 	{ "ac", LOG_FMT_ACTCONN, PR_MODE_TCP, LW_BYTES, NULL },  /* actconn */
-	{ "fc", LOG_FMT_FECONN, PR_MODE_TCP, LW_BYTES, NULL },   /* feconn */
+	{ "b", LOG_FMT_BACKEND, PR_MODE_TCP, LW_INIT, NULL },   /* backend */
 	{ "bc", LOG_FMT_BECONN, PR_MODE_TCP, LW_BYTES, NULL },   /* beconn */
-	{ "sc", LOG_FMT_SRVCONN, PR_MODE_TCP, LW_BYTES, NULL },  /* srv_conn */
-	{ "rc", LOG_FMT_RETRIES, PR_MODE_TCP, LW_BYTES, NULL },  /* retries */
-	{ "sq", LOG_FMT_SRVQUEUE, PR_MODE_TCP, LW_BYTES, NULL  }, /* srv_queue */
+	{ "bi", LOG_FMT_BACKENDIP, PR_MODE_TCP, LW_BCKIP, prepare_addrsource }, /* backend source ip */
+	{ "bp", LOG_FMT_BACKENDPORT, PR_MODE_TCP, LW_BCKIP, prepare_addrsource }, /* backend source port */
 	{ "bq", LOG_FMT_BCKQUEUE, PR_MODE_TCP, LW_BYTES, NULL }, /* backend_queue */
+	{ "ci", LOG_FMT_CLIENTIP, PR_MODE_TCP, LW_CLIP, NULL },  /* client ip */
+	{ "cp", LOG_FMT_CLIENTPORT, PR_MODE_TCP, LW_CLIP, NULL }, /* client port */
+	{ "f", LOG_FMT_FRONTEND, PR_MODE_TCP, LW_INIT, NULL },  /* frontend */
+	{ "fc", LOG_FMT_FECONN, PR_MODE_TCP, LW_BYTES, NULL },   /* feconn */
+	{ "fi", LOG_FMT_FRONTENDIP, PR_MODE_TCP, LW_FRTIP, NULL }, /* frontend ip */
+	{ "fp", LOG_FMT_FRONTENDPORT, PR_MODE_TCP, LW_FRTIP, NULL }, /* frontend port */
+	{ "ft", LOG_FMT_FRONTEND_XPRT, PR_MODE_TCP, LW_INIT, NULL },  /* frontend with transport mode */
 	{ "hr", LOG_FMT_HDRREQUEST, PR_MODE_HTTP, LW_REQHDR, NULL }, /* header request */
-	{ "hs", LOG_FMT_HDRRESPONS, PR_MODE_HTTP, LW_RSPHDR, NULL },  /* header response */
 	{ "hrl", LOG_FMT_HDRREQUESTLIST, PR_MODE_HTTP, LW_REQHDR, NULL }, /* header request list */
+	{ "hs", LOG_FMT_HDRRESPONS, PR_MODE_HTTP, LW_RSPHDR, NULL },  /* header response */
 	{ "hsl", LOG_FMT_HDRRESPONSLIST, PR_MODE_HTTP, LW_RSPHDR, NULL },  /* header response list */
-	{ "r", LOG_FMT_REQ, PR_MODE_HTTP, LW_REQ, NULL },  /* request */
+	{ "ms", LOG_FMT_MS, PR_MODE_TCP, LW_INIT, NULL },       /* accept date millisecond */
 	{ "pid", LOG_FMT_PID, PR_MODE_TCP, LW_INIT, NULL }, /* log pid */
+	{ "r", LOG_FMT_REQ, PR_MODE_HTTP, LW_REQ, NULL },  /* request */
+	{ "rc", LOG_FMT_RETRIES, PR_MODE_TCP, LW_BYTES, NULL },  /* retries */
 	{ "rt", LOG_FMT_COUNTER, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP request counter */
-	{ "H", LOG_FMT_HOSTNAME, PR_MODE_TCP, LW_INIT, NULL }, /* Hostname */
-	{ "ID", LOG_FMT_UNIQUEID, PR_MODE_HTTP, LW_BYTES, NULL }, /* Unique ID */
+	{ "s", LOG_FMT_SERVER, PR_MODE_TCP, LW_SVID, NULL },    /* server */
+	{ "sc", LOG_FMT_SRVCONN, PR_MODE_TCP, LW_BYTES, NULL },  /* srv_conn */
+	{ "si", LOG_FMT_SERVERIP, PR_MODE_TCP, LW_SVIP, NULL }, /* server destination ip */
+	{ "sp", LOG_FMT_SERVERPORT, PR_MODE_TCP, LW_SVIP, NULL }, /* server destination port */
+	{ "sq", LOG_FMT_SRVQUEUE, PR_MODE_TCP, LW_BYTES, NULL  }, /* srv_queue */
 	{ "sslc", LOG_FMT_SSL_CIPHER, PR_MODE_TCP, LW_XPRT, NULL }, /* client-side SSL ciphers */
 	{ "sslv", LOG_FMT_SSL_VERSION, PR_MODE_TCP, LW_XPRT, NULL }, /* client-side SSL protocol version */
+	{ "t", LOG_FMT_DATE, PR_MODE_TCP, LW_INIT, NULL },      /* date */
+	{ "ts", LOG_FMT_TERMSTATE, PR_MODE_TCP, LW_BYTES, NULL },/* termination state */
+	{ "tsc", LOG_FMT_TERMSTATE_CK, PR_MODE_TCP, LW_INIT, NULL },/* termination state */
+
+	/* The following tags are deprecated and will be removed soon */
+	{ "Bi", LOG_FMT_BACKENDIP, PR_MODE_TCP, LW_BCKIP, prepare_addrsource, "bi" }, /* backend source ip */
+	{ "Bp", LOG_FMT_BACKENDPORT, PR_MODE_TCP, LW_BCKIP, prepare_addrsource, "bp" }, /* backend source port */
+	{ "Ci", LOG_FMT_CLIENTIP, PR_MODE_TCP, LW_CLIP, NULL, "ci" },  /* client ip */
+	{ "Cp", LOG_FMT_CLIENTPORT, PR_MODE_TCP, LW_CLIP, NULL, "cp" }, /* client port */
+	{ "Fi", LOG_FMT_FRONTENDIP, PR_MODE_TCP, LW_FRTIP, NULL, "fi" }, /* frontend ip */
+	{ "Fp", LOG_FMT_FRONTENDPORT, PR_MODE_TCP, LW_FRTIP, NULL, "fp" }, /* frontend port */
+	{ "Si", LOG_FMT_SERVERIP, PR_MODE_TCP, LW_SVIP, NULL, "si" }, /* server destination ip */
+	{ "Sp", LOG_FMT_SERVERPORT, PR_MODE_TCP, LW_SVIP, NULL, "sp" }, /* server destination port */
+	{ "cc", LOG_FMT_CCLIENT, PR_MODE_HTTP, LW_REQHDR, NULL, "CC" },  /* client cookie */
+	{ "cs", LOG_FMT_CSERVER, PR_MODE_HTTP, LW_RSPHDR, NULL, "CS" },  /* server cookie */
+	{ "st", LOG_FMT_STATUS, PR_MODE_HTTP, LW_RESP, NULL, "ST" },   /* status code */
 	{ 0, 0, 0, 0, NULL }
 };
 
-char default_http_log_format[] = "%Ci:%Cp [%t] %ft %b/%s %Tq/%Tw/%Tc/%Tr/%Tt %st %B %cc %cs %tsc %ac/%fc/%bc/%sc/%rc %sq/%bq %hr %hs %{+Q}r"; // default format
-char clf_http_log_format[] = "%{+Q}o %{-Q}Ci - - [%T] %r %st %B \"\" \"\" %Cp %ms %ft %b %s %Tq %Tw %Tc %Tr %Tt %tsc %ac %fc %bc %sc %rc %sq %bq %cc %cs %hrl %hsl";
-char default_tcp_log_format[] = "%Ci:%Cp [%t] %ft %b/%s %Tw/%Tc/%Tt %B %ts %ac/%fc/%bc/%sc/%rc %sq/%bq";
+char default_http_log_format[] = "%ci:%cp [%t] %ft %b/%s %Tq/%Tw/%Tc/%Tr/%Tt %ST %B %CC %CS %tsc %ac/%fc/%bc/%sc/%rc %sq/%bq %hr %hs %{+Q}r"; // default format
+char clf_http_log_format[] = "%{+Q}o %{-Q}ci - - [%T] %r %ST %B \"\" \"\" %cp %ms %ft %b %s %Tq %Tw %Tc %Tr %Tt %tsc %ac %fc %bc %sc %rc %sq %bq %CC %CS %hrl %hsl";
+char default_tcp_log_format[] = "%ci:%cp [%t] %ft %b/%s %Tw/%Tc/%Tt %B %ts %ac/%fc/%bc/%sc/%rc %sq/%bq";
 char *log_format = NULL;
 
 /* This is a global syslog line, common to all outgoing messages. It begins
@@ -250,6 +266,9 @@
 							curproxy->to_log |= logformat_keywords[j].lw;
 							LIST_ADDQ(list_format, &node->list);
 						}
+						if (logformat_keywords[j].replace_by)
+							Warning("Warning: deprecated variable '%s' in log-format, please replace it with '%s'\n",
+								varname, logformat_keywords[j].replace_by);
 						return 0;
 					} else {
 						Warning("Warning: No such variable name '%s' in this log mode\n", varname);
@@ -259,7 +278,7 @@
 					}
 				}
 			}
-			Warning("Warning: No such variable name '%s' in logformat\n", varname);
+			Warning("Warning: No such variable name '%s' in log-format\n", varname);
 			if (arg)
 				free(arg);
 			return -1;
@@ -843,7 +862,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_CLIENTIP:  // %Ci
+			case LOG_FMT_CLIENTIP:  // %ci
 				ret = lf_ip(tmplog, (struct sockaddr *)&s->req->prod->conn->addr.from,
 					    dst + maxsize - tmplog, tmp);
 				if (ret == NULL)
@@ -852,7 +871,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_CLIENTPORT:  // %Cp
+			case LOG_FMT_CLIENTPORT:  // %cp
 				if (s->req->prod->conn->addr.from.ss_family == AF_UNIX) {
 					ret = ltoa_o(s->listener->luid, tmplog, dst + maxsize - tmplog);
 				} else {
@@ -865,7 +884,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_FRONTENDIP: // %Fi
+			case LOG_FMT_FRONTENDIP: // %fi
 				conn_get_to_addr(s->req->prod->conn);
 				ret = lf_ip(tmplog, (struct sockaddr *)&s->req->prod->conn->addr.to,
 					    dst + maxsize - tmplog, tmp);
@@ -875,7 +894,7 @@
 				last_isspace = 0;
 				break;
 
-			case  LOG_FMT_FRONTENDPORT: // %Fp
+			case  LOG_FMT_FRONTENDPORT: // %fp
 				conn_get_to_addr(s->req->prod->conn);
 				if (s->req->prod->conn->addr.to.ss_family == AF_UNIX) {
 					ret = ltoa_o(s->listener->luid,
@@ -890,7 +909,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_BACKENDIP:  // %Bi
+			case LOG_FMT_BACKENDIP:  // %bi
 				ret = lf_ip(tmplog, (struct sockaddr *)&s->req->cons->conn->addr.from,
 					    dst + maxsize - tmplog, tmp);
 				if (ret == NULL)
@@ -899,7 +918,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_BACKENDPORT:  // %Bp
+			case LOG_FMT_BACKENDPORT:  // %bp
 				ret = lf_port(tmplog, (struct sockaddr *)&s->req->cons->conn->addr.from,
 					      dst + maxsize - tmplog, tmp);
 				if (ret == NULL)
@@ -908,7 +927,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_SERVERIP: // %Si
+			case LOG_FMT_SERVERIP: // %si
 				ret = lf_ip(tmplog, (struct sockaddr *)&s->req->cons->conn->addr.to,
 					    dst + maxsize - tmplog, tmp);
 				if (ret == NULL)
@@ -917,7 +936,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_SERVERPORT: // %Sp
+			case LOG_FMT_SERVERPORT: // %sp
 				ret = lf_port(tmplog, (struct sockaddr *)&s->req->cons->conn->addr.to,
 					      dst + maxsize - tmplog, tmp);
 				if (ret == NULL)
@@ -1100,7 +1119,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_STATUS: // %st
+			case LOG_FMT_STATUS: // %ST
 				ret = ltoa_o(txn->status, tmplog, dst + maxsize - tmplog);
 				if (ret == NULL)
 					goto out;
@@ -1128,7 +1147,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_CCLIENT: // %cc
+			case LOG_FMT_CCLIENT: // %CC
 				src = txn->cli_cookie;
 				ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
 				if (ret == NULL)
@@ -1137,7 +1156,7 @@
 				last_isspace = 0;
 				break;
 
-			case LOG_FMT_CSERVER: // %cs
+			case LOG_FMT_CSERVER: // %CS
 				src = txn->srv_cookie;
 				ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
 				if (ret == NULL)