Also test ESI onerror with max_esi_depth reached

With onerror=abort, the request is aborted as with a bad return code.

With onerror=continue, the include remains empty

This already behaved like I expected it to, this vtc merely adds
an explicit test.

bin/varnishtest/tests/r03865.vtc

@@ -38,6 +38,20 @@ client c1 {
 	expect resp.body == "before "
 } -run
 
+varnish v1 -cliok "param.set max_esi_depth 0"
+
+client c1 {
+	txreq -url "/abort"
+	non_fatal
+	rxresphdrs
+	expect resp.status == 200
+	rxchunk
+	expect_close
+	expect resp.body == "before "
+} -run
+
+varnish v1 -cliok "param.set max_esi_depth 1"
+
 varnish v1 -vsl_catchup
 
 server s1 -wait
@@ -55,3 +69,12 @@ client c1 {
 	rxresp
 	expect resp.body == "before FOOBAR after"
 } -run
+
+varnish v1 -cliok "param.set max_esi_depth 0"
+
+client c1 {
+	fatal
+	txreq -url "/continue"
+	rxresp
+	expect resp.body == "before  after"
+} -run