[4.1] 17f14aa Log an error if we fail to get storage

[Lasse Karstensen]

commit 17f14aad07cbf95dc47212afe0102ec8d1ea793e
Author: Federico G. Schwindt <fgsch at lodoss.net>
Date:   Mon May 23 12:18:41 2016 +0100

    Log an error if we fail to get storage
    
    Conflicts:
    	bin/varnishd/cache/cache_fetch.c

diff --git a/bin/varnishd/cache/cache_fetch.c b/bin/varnishd/cache/cache_fetch.c
index e3773e8..880fb4e 100644
--- a/bin/varnishd/cache/cache_fetch.c
+++ b/bin/varnishd/cache/cache_fetch.c
@@ -858,6 +858,7 @@ vbf_stp_error(struct worker *wrk, struct busyobj *bo)
 	bo->vfc->esi_req = bo->bereq;
 
 	if (vbf_beresp2obj(bo)) {
+		(void)VFP_Error(bo->vfc, "Could not get storage");
 		VSB_delete(synth_body);
 		return (F_STP_FAIL);
 	}