Prevent compiler warnings

ChainsDD · ChainsDD · commit 4baab0140763 · 2012-07-08T09:07:32.000+01:00
diff --git a/activity.c b/activity.c
@@ -16,6 +16,8 @@
 */
 
 #include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
 
 #include "su.h"
 
