[master] 933b8cf Log an error if we fail to get storage

[Federico G. Schwindt]

commit 933b8cf4b8d28615ac1b645b94dc3090c30756a4
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

diff --git a/bin/varnishd/cache/cache_fetch.c b/bin/varnishd/cache/cache_fetch.c
index c076bcc..62c79ad 100644
--- a/bin/varnishd/cache/cache_fetch.c
+++ b/bin/varnishd/cache/cache_fetch.c
@@ -874,6 +874,7 @@ 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_destroy(&synth_body);
 		return (F_STP_FAIL);
 	}