Merge r4338: Send stderr to /dev/null when running nm

Previously, running varnishd -V would sometimes say:

nm: 'varnishd': No such file

which is wrong.  Silence this message



git-svn-id: http://www.varnish-cache.org/svn/branches/2.0@4343 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/varnishd.c

@@ -463,7 +463,7 @@ Symbol_hack(const char *a0)
 	struct symbols *s;
 
 	p = NULL;
-	asprintf(&p, "nm -an %s", a0);
+	asprintf(&p, "nm -an %s 2>/dev/null", a0);
 	if (p == NULL)
 		return;
 	fi = popen(p, "r");