[master] 416a919 Make now constant within a VCL subroutine

[Federico G. Schwindt]

commit 416a919023c455f261f0be9a6a74d178f0dbf403
Author: Federico G. Schwindt <fgsch at lodoss.net>
Date:   Mon May 30 18:05:13 2016 +0100

    Make now constant within a VCL subroutine
    
    Idea from Devon H. O'Dell (dho at fastly dot com).

diff --git a/bin/varnishd/cache/cache_vrt.c b/bin/varnishd/cache/cache_vrt.c
index a82b1e4..efb2949 100644
--- a/bin/varnishd/cache/cache_vrt.c
+++ b/bin/varnishd/cache/cache_vrt.c
@@ -292,7 +292,7 @@ VRT_r_now(VRT_CTX)
 {
 
 	(void)ctx;
-	return (VTIM_real());
+	return (ctx->now);
 }
 
 /*--------------------------------------------------------------------*/