ffserver: free pathname before bailing out

Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>

ffserver.c

@@ -443,6 +443,7 @@ static void start_children(FFServerStream *feed)
         feed->pid = fork();
         if (feed->pid < 0) {
             http_log("Unable to create children: %s\n", strerror(errno));
+            av_free (pathname);
             exit(EXIT_FAILURE);
         }