Make Expect 100-continue test case-insensitive

Candidate for merging into 2.1 branch



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@5048 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_center.c

@@ -1149,7 +1149,7 @@ cnt_start(struct sess *sp)
 	 * Handle Expect headers
 	 */
 	if (http_GetHdr(sp->http, H_Expect, &p)) {
-		if (strcmp(p, "100-continue")) {
+		if (strcasecmp(p, "100-continue")) {
 			sp->err_code = 417;
 			sp->step = STP_ERROR;
 			return (0);