test the error messages in max_mem.vtc more precisely

src/tests/max_mem.vtc

@@ -68,7 +68,7 @@ client c1 {
 
 logexpect l1 -v v1 -d 1 -g vxid -q "VCL_Error" {
 	expect 0 * Begin req
-	expect * = VCL_Error "^vmod re2 error: re2.match.pattern=...1000.x., text=.c+"
+	expect * = VCL_Error "^vmod re2 error: re2.match.pattern=...1000.x., text=.c+..: Cannot compile: pattern too large - compile failed$"
 	expect * = End
 } -run
 
@@ -133,7 +133,7 @@ varnish v1 -vcl {
 
 logexpect l2 -v v1 -d 0 -g vxid -q "VCL_Error" {
 	expect 0 * Begin req
-	expect * = VCL_Error "^vmod re2 error: re2.sub.pattern=...1000.x., text=.c+"
+	expect * = VCL_Error "^vmod re2 error: re2.sub.pattern=...1000.x., text=.c+.., rewrite=.z., fallback=.fallback..: Cannot compile '..1000.x': pattern too large - compile failed$"
 	expect * = End
 } -start
 
@@ -166,7 +166,7 @@ varnish v1 -vcl {
 
 logexpect l3 -v v1 -d 0 -g vxid -q "VCL_Error" {
 	expect 0 * Begin req
-	expect * = VCL_Error "^vmod re2 error: re2.suball.pattern=...1000.x., text=.c+"
+	expect * = VCL_Error "^vmod re2 error: re2.suball.pattern=...1000.x., text=.c+.., rewrite=.z., fallback=.fallback..: Cannot compile '..1000.x': pattern too large - compile failed$"
 	expect * = End
 } -start
 
@@ -199,7 +199,7 @@ varnish v1 -vcl {
 
 logexpect l4 -v v1 -d 0 -g vxid -q "VCL_Error" {
 	expect 0 * Begin req
-	expect * = VCL_Error "^vmod re2 error: re2.extract.pattern=...1000.x., text=.c+"
+	expect * = VCL_Error "^vmod re2 error: re2.extract.pattern=...1000.x., text=.c+.., rewrite=.z., fallback=.fallback..: Cannot compile '..1000.x': pattern too large - compile failed$"
 	expect * = End
 } -start