Ensure that logmsgs are freed properly

Messages sent while the logger thread is shutting down will now have
their associated callid freed properly.
........

Merged revisions 382574 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@382575 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/logger.c

@@ -1537,7 +1537,7 @@ static void __attribute__((format(printf, 6, 0))) ast_log_full(int level, const
 		AST_LIST_LOCK(&logmsgs);
 		if (close_logger_thread) {
 			/* Logger is either closing or closed.  We cannot log this message. */
-			ast_free(logmsg);
+			logmsg_free(logmsg);
 		} else {
 			AST_LIST_INSERT_TAIL(&logmsgs, logmsg, list);
 			ast_cond_signal(&logcond);