[master] de8cf10 Clarify comment

[Federico G. Schwindt]

commit de8cf10fc665b74692b56d630ab74eec4032f2bc
Author: Federico G. Schwindt <fgsch at lodoss.net>
Date:   Tue Dec 16 14:30:30 2014 +0000

    Clarify comment

diff --git a/bin/varnishd/cache/cache_rfc2616.c b/bin/varnishd/cache/cache_rfc2616.c
index 89949e4..3d66fe5 100644
--- a/bin/varnishd/cache/cache_rfc2616.c
+++ b/bin/varnishd/cache/cache_rfc2616.c
@@ -89,7 +89,7 @@ RFC2616_Ttl(struct busyobj *bo, double now)
 
 	/*
 	 * Initial cacheability determination per [RFC2616, 13.4]
-	 * We do not support ranges yet, so 206 is out.
+	 * We do not support ranges to the backend yet, so 206 is out.
 	 */
 
 	if (http_GetHdr(hp, H_Age, &p)) {