MINOR: startup: rename on_new_child_failure to mworker_on_new_child_failure

This patch prepares the moving of on_new_child_failure definition into
mworker.c. So, let's rename it accordingly and let's also update its
description.

Author: einval22

include/haproxy/global.h

@@ -68,7 +68,7 @@ void display_version();
 
 void mworker_accept_wrapper(int fd);
 void mworker_reload(int hardreload);
-void on_new_child_failure(void);
+void mworker_on_new_child_failure(void);
 
 /* to be used with warned and WARN_* */
 static inline int already_warned(unsigned int warning)

src/haproxy.c

@@ -915,9 +915,10 @@ static void mworker_loop()
 }
 
 /*
- * Reexec the process in failure mode, instead of exiting
+ * Performs some routines for the worker process, which has failed the reload,
+ * updates the global load_status.
  */
-void on_new_child_failure()
+void mworker_on_new_child_failure()
 {
 	struct mworker_proc *child;
 

src/mworker.c

@@ -356,7 +356,7 @@ void mworker_catch_sigchld(struct sig_handler *sh)
 			/* We didn't find the PID in the list, that shouldn't happen but we can emit a warning */
 			ha_warning("Process %d exited with code %d (%s)\n", exitpid, status, (status >= 128) ? strsignal(status - 128) : "Exit");
 		} else if (child->options & PROC_O_INIT) {
-			on_new_child_failure();
+			mworker_on_new_child_failure();
 
 			/* Detach all listeners */
 			for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {