[5.1] 744e55d Log VSM/VSL errors in varnishtest

[Martin Blix Grydeland]

commit 744e55dc837c3be0a6761cfbc7406419a44d7cc0
Author: Martin Blix Grydeland <martin at varnish-software.com>
Date:   Wed Mar 22 17:58:28 2017 +0100

    Log VSM/VSL errors in varnishtest
    
    This might be useful for debugging

diff --git a/bin/varnishtest/vtc_varnish.c b/bin/varnishtest/vtc_varnish.c
index 5941848..154952e 100644
--- a/bin/varnishtest/vtc_varnish.c
+++ b/bin/varnishtest/vtc_varnish.c
@@ -209,11 +209,15 @@ varnishlog_thread(void *priv)
 		if (c == NULL) {
 			VTIM_sleep(0.1);
 			if (VSM_Open(vsm)) {
+				vtc_log(v->vl, 3, "vsm|%s",
+				    VSM_Error(vsm));
 				VSM_ResetError(vsm);
 				continue;
 			}
 			c = VSL_CursorVSM(vsl, vsm, opt);
 			if (c == NULL) {
+				vtc_log(v->vl, 3, "vsl|%s",
+				    VSL_Error(vsl));
 				VSL_ResetError(vsl);
 				continue;
 			}