Main loop: increase timer.

Timer in the main loop was of 100 usec. This patch increases it
to 10 ms which should be a reasonnable delay to declare some threads
dead.

Signed-off-by: Eric Leblond <eric@regit.org>

src/suricata.c

@@ -1280,7 +1280,7 @@ int main(int argc, char **argv)
 
         TmThreadCheckThreadState();
 
-        usleep(100);
+        usleep(10* 1000);
     }
 
     /* Update the engine stage/status flag */