Correct three bits worth of line noise. This fixes #129.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1838 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_http.c

@@ -326,7 +326,7 @@ http_GetTail(struct http *hp, unsigned len, char **b, char **e)
 		return (0);
 
 	if (len == 0)
-		len = hp->pl_e - hp->pl_e;
+		len = hp->pl_e - hp->pl_s;
 
 	if (hp->pl_s + len > hp->pl_e)
 		len = hp->pl_e - hp->pl_s;