CLEANUP: mworker/cli: clean up the mode handling

Cleanup the mode handling by refactoring the strings constant
that are written multiple times

src/cli.c

@@ -2918,16 +2918,19 @@ int pcli_parse_request(struct stream *s, struct channel *req, char **errmsg, int
 
 		/* the mcli-debug-mode is only sent to the applet of the master */
 		if ((s->pcli_flags & ACCESS_MCLI_DEBUG) && *next_pid <= 0) {
-			ci_insert(req, 0, "mcli-debug-mode on -;", strlen("mcli-debug-mode on -;"));
-			ret += strlen("mcli-debug-mode on -;");
+			const char *cmd = "mcli-debug-mode on -;";
+			ci_insert(req, 0, cmd, strlen(cmd));
+			ret += strlen(cmd);
 		}
 		if (s->pcli_flags & ACCESS_EXPERIMENTAL) {
-			ci_insert(req, 0, "experimental-mode on -;", strlen("experimental-mode on -;"));
-			ret += strlen("experimental-mode on -;");
+			const char *cmd = "experimental-mode on -;";
+			ci_insert(req, 0, cmd, strlen(cmd));
+			ret += strlen(cmd);
 		}
 		if (s->pcli_flags & ACCESS_EXPERT) {
-			ci_insert(req, 0, "expert-mode on -;", strlen("expert-mode on -;"));
-			ret += strlen("expert-mode on -;");
+			const char *cmd = "expert-mode on -;";
+			ci_insert(req, 0, cmd, strlen(cmd));
+			ret += strlen(cmd);
 		}
 		if (s->pcli_flags & ACCESS_MCLI_SEVERITY_STR) {
 			const char *cmd = "set severity-output string -;";
@@ -2943,11 +2946,13 @@ int pcli_parse_request(struct stream *s, struct channel *req, char **errmsg, int
 		if (pcli_has_level(s, ACCESS_LVL_ADMIN)) {
 			goto end;
 		} else if (pcli_has_level(s, ACCESS_LVL_OPER)) {
-			ci_insert(req, 0, "operator -;", strlen("operator -;"));
-			ret += strlen("operator -;");
+			const char *cmd = "operator -;";
+			ci_insert(req, 0, cmd, strlen(cmd));
+			ret += strlen(cmd);
 		} else if (pcli_has_level(s, ACCESS_LVL_USER)) {
-			ci_insert(req, 0, "user -;", strlen("user -;"));
-			ret += strlen("user -;");
+			const char *cmd = "user -;";
+			ci_insert(req, 0, cmd, strlen(cmd));
+			ret += strlen(cmd);
 		}
 	}
 end: