Use _exit(0) in our daemon(3) compat function, we do not want to

trigger atexit(3) processing.

Fixes #632



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4607 d4fa192b-c00b-0410-8231-f00ffab90ce4

lib/libvarnishcompat/daemon.c

@@ -65,7 +65,11 @@ varnish_daemon(int nochdir, int noclose)
 	case 0:
 		break;
 	default:
-		exit(0);
+		/*
+		 * A fine point:  _exit(0), not exit(0), to avoid triggering
+		 * atexit(3) processing
+		 */
+		_exit(0);
 	}
 
 	newgrp = setsid();