correcting the search term

i don't know why this passed before, clearly we kill the process when we fail to assign a cgroup i don't know why it would ever return a different message with this fix test pass locally

integration-test/test/parallel/7_vmwatch.bats

@@ -356,7 +356,7 @@ teardown(){
 
     verify_substatus_item "$status_file" AppHealthStatus success "Application found to be healthy"
     verify_substatus_item "$status_file" ApplicationHealthState success Healthy
-    verify_substatus_item "$status_file" VMWatch error "VMWatch failed: .* Failed to assign VMWatch process to cgroup.*"
+    verify_substatus_item "$status_file" VMWatch error "VMWatch failed: .* VMWatch process exited. Error: signal: killed.**"
 }
 
 @test "handler command: enable/disable - vm watch killed when disable is called" {