Test for match with leading and trailing space as well.

git-svn-id: http://www.varnish-cache.org/svn/trunk@2811 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishtest/tests/c00004.vtc

@@ -43,7 +43,7 @@ client c1 {
 	expect resp.http.X-Varnish == "1004"
 	expect resp.http.snafu == "4"
 
-	txreq -hdr "Foobar: 1"
+	txreq -hdr "Foobar:  1 "
 	rxresp
 	expect resp.status == 200
 	expect resp.http.X-Varnish == "1005 1001"