File ksh93-disable-vfork.dif of Package ksh

--- src/lib/libast/features/lib.orig	2014-11-19 13:03:58.009305098 +0000
+++ src/lib/libast/features/lib	2014-11-19 13:23:05.010183379 +0000
@@ -221,7 +221,7 @@ tst	lib_vfork unistd.h stdlib.h vfork.h
 			_exit(2);
 		}
 		status = 1;
-		_exit(wait(&status) < 0 || status != 0);
+		_exit(wait(&status) < 0 || status != 0 || 1);
  	}
 }end