Pay attention to the return value of system(), even if we basically ignore it.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@160170 65c4cc65-6c06-0410-ace0-fbb531ad65f3

utils/smsq.c

@@ -399,7 +399,9 @@ static void rxqcheck (char *dir, char *queue, char *process)
             setenv ("ud16", tmp, 1);
          }
          /* run the command */
-         system (process);
+         if (system (process) == -1) {
+            fprintf(stderr, "Failed to fork process '%s'\n", process);
+         }
       }
    closedir (d);
 }