MINOR: dumpstats: change the "get map" display management

The original get map display function set the comma separator after each
word displayed. This is not efficient because we cannot knew if the
displayed word is the last.

This new system set the comma separator before the displayed word, and
independant "\n" is set a the end of the function.
diff --git a/src/dumpstats.c b/src/dumpstats.c
index a6b13fd..2532472 100644
--- a/src/dumpstats.c
+++ b/src/dumpstats.c
@@ -4854,61 +4854,61 @@
 
 			/* build return message: set type of match */
 			/**/ if (appctx->ctx.map.desc->pat->match == NULL)
-				chunk_appendf(&trash, "type=found, ");
+				chunk_appendf(&trash, "type=found");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_nothing)
-				chunk_appendf(&trash, "type=bool, ");
+				chunk_appendf(&trash, "type=bool");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_int)
-				chunk_appendf(&trash, "type=int, ");
+				chunk_appendf(&trash, "type=int");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_ip)
-				chunk_appendf(&trash, "type=ip, ");
+				chunk_appendf(&trash, "type=ip");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_bin)
-				chunk_appendf(&trash, "type=bin, ");
+				chunk_appendf(&trash, "type=bin");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_len)
-				chunk_appendf(&trash, "type=len, ");
+				chunk_appendf(&trash, "type=len");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_str)
-				chunk_appendf(&trash, "type=str, ");
+				chunk_appendf(&trash, "type=str");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_beg)
-				chunk_appendf(&trash, "type=beg, ");
+				chunk_appendf(&trash, "type=beg");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_sub)
-				chunk_appendf(&trash, "type=sub, ");
+				chunk_appendf(&trash, "type=sub");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_dir)
-				chunk_appendf(&trash, "type=dir, ");
+				chunk_appendf(&trash, "type=dir");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_dom)
-				chunk_appendf(&trash, "type=dom, ");
+				chunk_appendf(&trash, "type=dom");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_end)
-				chunk_appendf(&trash, "type=end, ");
+				chunk_appendf(&trash, "type=end");
 			else if (appctx->ctx.map.desc->pat->match == pat_match_reg)
-				chunk_appendf(&trash, "type=reg, ");
+				chunk_appendf(&trash, "type=reg");
 			else /* The never appens case */
-				chunk_appendf(&trash, "type=unknown(%p), ", appctx->ctx.map.desc->pat->match);
+				chunk_appendf(&trash, "type=unknown(%p)", appctx->ctx.map.desc->pat->match);
 
 			/* Display no match, and set default value */
 			if (!pat) {
-				chunk_appendf(&trash, "match=no, ");
+				chunk_appendf(&trash, ", match=no");
 			}
 
 			/* Display match and match info */
 			else {
 				/* display match */
-				chunk_appendf(&trash, "match=yes, ");
+				chunk_appendf(&trash, ", match=yes");
 
 				/* display index mode */
 				if (pat->flags & PAT_F_TREE)
-					chunk_appendf(&trash, "idx=tree, ");
+					chunk_appendf(&trash, ", idx=tree");
 				else
-					chunk_appendf(&trash, "idx=list, ");
+					chunk_appendf(&trash, ", idx=list");
 
 				/* case sensitive */
 				if (pat->flags & PAT_F_IGNORE_CASE)
-					chunk_appendf(&trash, "case=insensitive, ");
+					chunk_appendf(&trash, ", case=insensitive");
 				else
-					chunk_appendf(&trash, "case=sensitive, ");
+					chunk_appendf(&trash, ", case=sensitive");
 
 				/* display source */
 				if (pat->flags & PAT_F_FROM_FILE)
-					chunk_appendf(&trash, "src=file, ");
+					chunk_appendf(&trash, ", src=file");
 				else
-					chunk_appendf(&trash, "src=conf, ");
+					chunk_appendf(&trash, ", src=conf");
 
 				/* display string */
 				if (appctx->ctx.map.desc->pat->match == pat_match_str ||
@@ -4918,7 +4918,7 @@
 				    appctx->ctx.map.desc->pat->match == pat_match_dir ||
 				    appctx->ctx.map.desc->pat->match == pat_match_dom ||
 				    appctx->ctx.map.desc->pat->match == pat_match_end) {
-					chunk_appendf(&trash, "key=\"%s\", ", pat->ptr.str);
+					chunk_appendf(&trash, ", key=\"%s\"", pat->ptr.str);
 				}
 				else if (appctx->ctx.map.desc->pat->match == pat_match_ip) {
 					/* display IPv4/v6 */
@@ -4930,7 +4930,7 @@
 							memcpy(&((struct sockaddr_in *)&addr)->sin_addr, &pat->val.ipv4.mask,
 							       sizeof(pat->val.ipv4.mask));
 							if (addr_to_str(&addr, s_mask, INET_ADDRSTRLEN))
-								chunk_appendf(&trash, "key=\"%s/%s\", ", s_addr, s_mask);
+								chunk_appendf(&trash, ", key=\"%s/%s\"", s_addr, s_mask);
 						}
 					}
 					else if (pat->type == SMP_T_IPV6) {
@@ -4938,14 +4938,14 @@
 						memcpy(&((struct sockaddr_in6 *)&addr)->sin6_addr, &pat->val.ipv6.addr,
 						       sizeof(pat->val.ipv6.addr));
 						if (addr_to_str(&addr, s_addr6, INET6_ADDRSTRLEN))
-							chunk_appendf(&trash, "key=\"%s/%d\", ", s_addr6, pat->val.ipv6.mask);
+							chunk_appendf(&trash, ", key=\"%s/%d\"", s_addr6, pat->val.ipv6.mask);
 					}
 				}
 			}
 
 			/* display return value */
 			if (!pat || !pat->smp) {
-				chunk_appendf(&trash, "value=nothing\n");
+				chunk_appendf(&trash, ", value=nothing");
 			}
 			else {
 				smp = pat->smp;
@@ -4953,13 +4953,15 @@
 				sample.type = smp->type;
 				if (sample_casts[sample.type][SMP_T_STR] &&
 				    sample_casts[sample.type][SMP_T_STR](&sample))
-					chunk_appendf(&trash, "value=\"%s\", type=\"%s\"\n",
+					chunk_appendf(&trash, ", value=\"%s\", type=\"%s\"",
 					              sample.data.str.str, smp_to_type[smp->type]);
 				else
-					chunk_appendf(&trash, "value=cannot-display, type=\"%s\"\n",
+					chunk_appendf(&trash, ", value=cannot-display, type=\"%s\"",
 					              smp_to_type[smp->type]);
 			}
 
+			chunk_appendf(&trash, "\n");
+
 			/* display response */
 			if (bi_putchk(si->ib, &trash) == -1) {
 				/* let's try again later from this session. We add ourselves into