CLEANUP: cli: rename dynamic error printing state

Rename CLI_ST_PRINT_FREE to CLI_ST_PRINT_DYNERR.

Most notably, this highlights that this is reserved to error printing.

This is done to ensure consistency between CLI_ST_PRINT/CLI_ST_PRINT_DYN
and CLI_ST_PRINT_ERR/CLI_ST_PRINT_DYNERR. The name is also consistent
with the function cli_dynerr() which activates it.
diff --git a/addons/ot/src/cli.c b/addons/ot/src/cli.c
index 9132fe9..0080dbd 100644
--- a/addons/ot/src/cli.c
+++ b/addons/ot/src/cli.c
@@ -97,7 +97,7 @@
 		(void)memprintf(&msg, FLT_OT_CLI_CMD " : current debug level is %hhu", value);
 	}
 
-	cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_FREE);
+	cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_DYNERR);
 
 	FLT_OT_RETURN_INT(retval);
 }
@@ -137,7 +137,7 @@
 		(void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : filter %sabled", FLT_OT_CLI_MSG_CAT(msg), value ? "dis" : "en");
 	} FLT_OT_PROXIES_LIST_END();
 
-	cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_FREE);
+	cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_DYNERR);
 
 	FLT_OT_RETURN_INT(retval);
 }
@@ -175,7 +175,7 @@
 		(void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : filter set %s-errors", FLT_OT_CLI_MSG_CAT(msg), value ? "hard" : "soft");
 	} FLT_OT_PROXIES_LIST_END();
 
-	cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_FREE);
+	cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_DYNERR);
 
 	FLT_OT_RETURN_INT(retval);
 }
@@ -238,7 +238,7 @@
 		} FLT_OT_PROXIES_LIST_END();
 	}
 
-	cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_FREE);
+	cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_DYNERR);
 
 	FLT_OT_RETURN_INT(retval);
 }
@@ -289,7 +289,7 @@
 		} FLT_OT_PROXIES_LIST_END();
 	}
 
-	cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_FREE);
+	cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_DYNERR);
 
 	FLT_OT_RETURN_INT(retval);
 }
@@ -343,7 +343,7 @@
 		nl = "\n";
 	} FLT_OT_PROXIES_LIST_END();
 
-	cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_FREE);
+	cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_DYNERR);
 
 	FLT_OT_RETURN_INT(retval);
 }
diff --git a/include/haproxy/cli-t.h b/include/haproxy/cli-t.h
index 3a61656..7570954 100644
--- a/include/haproxy/cli-t.h
+++ b/include/haproxy/cli-t.h
@@ -57,7 +57,7 @@
 	CLI_ST_PRINT,      /* display const message in cli->msg */
 	CLI_ST_PRINT_ERR,  /* display const error in cli->msg */
 	CLI_ST_PRINT_DYN,  /* display dynamic message in cli->err. After the display, free the pointer */
-	CLI_ST_PRINT_FREE, /* display dynamic error in cli->err. After the display, free the pointer */
+	CLI_ST_PRINT_DYNERR, /* display dynamic error in cli->err. After the display, free the pointer */
 	CLI_ST_CALLBACK,   /* custom callback pointer */
 };
 
@@ -72,7 +72,7 @@
 /* CLI context for printing command responses. */
 struct cli_print_ctx {
 	const char *msg;        /* pointer to a persistent message to be returned in CLI_ST_PRINT state */
-	char *err;              /* pointer to a 'must free' message to be returned in CLI_ST_PRINT_FREE state */
+	char *err;              /* pointer to a 'must free' message to be returned in CLI_ST_PRINT_DYN state */
 	int severity;           /* severity of the message to be returned according to (syslog) rfc5424 */
 };
 
diff --git a/include/haproxy/cli.h b/include/haproxy/cli.h
index 379bc38..bb5c23c 100644
--- a/include/haproxy/cli.h
+++ b/include/haproxy/cli.h
@@ -104,7 +104,7 @@
 	struct cli_print_ctx *ctx = applet_reserve_svcctx(appctx, sizeof(*ctx));
 
 	ctx->err = err;
-	appctx->st0 = CLI_ST_PRINT_FREE;
+	appctx->st0 = CLI_ST_PRINT_DYNERR;
 	return 1;
 }
 
diff --git a/src/cli.c b/src/cli.c
index 5635ea8..406b850 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -1041,7 +1041,7 @@
 			case CLI_ST_PRINT:       /* print const message in msg */
 			case CLI_ST_PRINT_ERR:   /* print const error in msg */
 			case CLI_ST_PRINT_DYN:   /* print dyn message in msg, free */
-			case CLI_ST_PRINT_FREE:  /* print dyn error in err, free */
+			case CLI_ST_PRINT_DYNERR: /* print dyn error in err, free */
 				/* the message is in the svcctx */
 				ctx = applet_reserve_svcctx(appctx, sizeof(*ctx));
 				if (appctx->st0 == CLI_ST_PRINT || appctx->st0 == CLI_ST_PRINT_ERR) {
@@ -1049,8 +1049,8 @@
 						LOG_ERR : ctx->severity;
 					msg = ctx->msg;
 				}
-				else if (appctx->st0 == CLI_ST_PRINT_DYN || appctx->st0 == CLI_ST_PRINT_FREE) {
-					sev = appctx->st0 == CLI_ST_PRINT_FREE ?
+				else if (appctx->st0 == CLI_ST_PRINT_DYN || appctx->st0 == CLI_ST_PRINT_DYNERR) {
+					sev = appctx->st0 == CLI_ST_PRINT_DYNERR ?
 						LOG_ERR : ctx->severity;
 					msg = ctx->err;
 					if (!msg) {
@@ -1064,8 +1064,8 @@
 				}
 
 				if (cli_output_msg(res, msg, sev, cli_get_severity_output(appctx)) != -1) {
-					if (appctx->st0 == CLI_ST_PRINT_FREE ||
-					    appctx->st0 == CLI_ST_PRINT_DYN) {
+					if (appctx->st0 == CLI_ST_PRINT_DYN ||
+					    appctx->st0 == CLI_ST_PRINT_DYNERR) {
 						ha_free(&ctx->err);
 					}
 					appctx->st0 = CLI_ST_PROMPT;
@@ -1193,7 +1193,7 @@
 		appctx->io_release(appctx);
 		appctx->io_release = NULL;
 	}
-	else if (appctx->st0 == CLI_ST_PRINT_FREE || appctx->st0 == CLI_ST_PRINT_DYN) {
+	else if (appctx->st0 == CLI_ST_PRINT_DYN || appctx->st0 == CLI_ST_PRINT_DYNERR) {
 		struct cli_print_ctx *ctx = applet_reserve_svcctx(appctx, sizeof(*ctx));
 
 		ha_free(&ctx->err);