Tell daemon(3) to not chdir in debugging mode so we can find our core dumps.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@608 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/varnishd.c

@@ -682,7 +682,7 @@ main(int argc, char *argv[])
 
 	if (dflag)
 		DebugStunt();
-	daemon(0, dflag);
+	daemon(dflag, dflag);
 	if (dflag)
 		printf("%d\n%d\n%d\n", getpid(), getsid(0), getpgrp());