Test logging failure exit status.

src/Makefile.am

@@ -71,6 +71,7 @@ endif
 EXTRA_DIST = \
 	vdfp_pipe.vcc \
 	$(srcdir)/tests/slow.sh \
+	$(srcdir)/tests/fail.sh \
 	$(VMOD_TESTS)
 
 CLEANFILES = \

src/tests/error.vtc

@@ -30,3 +30,25 @@ logexpect l1 -v v1 -g vxid -d 1 -q Error {
 	expect * = Error  {^vdfp_pipe: vdp cat: ${cat} stderr: }
 	expect * = End
 } -run
+
+varnish v1 -vcl+backend {
+	import ${vmod_pipe};
+
+	sub vcl_init {
+		new fail = pipe.vdp(path="${testdir}/fail.sh");
+	}
+
+	sub vcl_deliver {
+		set resp.filters = "fail";
+	}
+}
+
+logexpect l1 -v v1 -g vxid -d 0 -q Error {
+	expect 0 * Begin  {^req \d+ rxreq$}
+	expect * = Error  {^vdfp_pipe: vdp fail: .+/fail.sh exited with status 47$}
+	expect * = End
+} -start
+
+client c1 -run
+
+logexpect l1 -wait

src/tests/fail.sh

+#! /bin/sh
+
+while read line
+do
+    echo $line
+done
+
+exit 47