Deprecate BackendReuse in favor of BackendClose

Signed-off-by: Nils Goroll <nils.goroll@uplex.de>

src/tests/e00008.vtc

@@ -107,19 +107,19 @@ logexpect l1 -v v1 -g vxid {
 	expect 0 = ESI_xmlerror {^ERR after 665 ESI 1.0 </esi:include> illegal end-tag$}
 	expect 0 = ESI_xmlerror {^ERR after 767 XML 1.0 Missing end attribute delimiter$}
 	expect 0 = ESI_xmlerror {^ERR after 843 ESI 1.0 <esi:include> has whitespace in src= attribute$}
-	expect 0 = BackendReuse
+	expect 0 = BackendClose
 } -start
 
 logexpect l2 -v v1 -g vxid {
 	expect * * BereqURL	{^/body$}
 	expect * = ESI_xmlerror {^ERR after 30 VEP ended inside a tag$}
-	expect 0 = BackendReuse
+	expect 0 = BackendClose
 } -start
 
 logexpect l3 -v v1 -g vxid {
 	expect * * BereqURL	{^/body2$}
 	expect * = ESI_xmlerror {^ERR after 39 VEP ended inside a tag$}
-	expect 0 = BackendReuse
+	expect 0 = BackendClose
 } -start
 
 varnish v1 -cliok "param.set debug +esi_chop"

src/tests/e00019.vtc

@@ -69,7 +69,7 @@ logexpect l1 -v v1 -g vxid {
 	expect 0 = ESI_xmlerror {^WARN after 107 ESI 1.0 <esi:include> lacks final '/'$}
 	expect 0 = ESI_xmlerror {^ERR after 130 ESI 1.0 <esi:bogus> element$}
 	expect 0 = ESI_xmlerror {^ERR after 131837 VEP ended inside a tag$}
-	expect 0 = BackendReuse
+	expect 0 = BackendClose
 } -start
 
 client c1 {

src/tests/e00020.vtc

@@ -33,7 +33,7 @@ logexpect l1 -v v1 -g vxid {
 	expect 0 = ESI_xmlerror {^ERR after 3 ESI 1.0 <esi:include> element nested in <esi:remove>$}
 	expect 0 = ESI_xmlerror {^ERR after 3 ESI 1.0 Nested <!--esi element in <esi:remove>$}
 	expect 0 = Gzip         {^U}
-	expect 0 = BackendReuse
+	expect 0 = BackendClose
 } -start
 
 client c1 {

src/tests/e00022.vtc

@@ -39,7 +39,7 @@ logexpect l1 -v v1 -g vxid {
 	expect 0 = ESI_xmlerror {^ERR after 24 ESI 1.0 Nested <!--esi element in <esi:remove>$}
 	expect 0 = Gzip         {^G}
 	expect 0 = Gzip         {^U}
-	expect 0 = BackendReuse
+	expect 0 = BackendClose
 } -start
 
 client c1 {