[5.1] e8bb7ec Give this test 8 bytes more to succeed in.

[Poul-Henning Kamp]

commit e8bb7ec58b893a138b1c1d782b2b2e40d69cc97c
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Thu Mar 23 22:50:38 2017 +0000

    Give this test 8 bytes more to succeed in.

diff --git a/bin/varnishtest/tests/r02275.vtc b/bin/varnishtest/tests/r02275.vtc
index 5458832..a5b2e27 100644
--- a/bin/varnishtest/tests/r02275.vtc
+++ b/bin/varnishtest/tests/r02275.vtc
@@ -20,7 +20,7 @@ varnish v1 -vcl+backend {
 			    -1 * (40 + debug.typesize("p") * 25));
 		} else {
 			debug.workspace_allocate(client,
-			    -1 * (48 + debug.typesize("p") * 25));
+			    -1 * (56 + debug.typesize("p") * 25));
 		}
 		set resp.http.foo = debug.workspace_free(client);
 	}