Add myself to command/stack codeowners

Cleanup a test

Signed-off-by: Daniel Nephin <dnephin@docker.com>

.github/CODEOWNERS

@@ -1,6 +1,7 @@
 # Github code owners
 # See https://github.com/blog/2392-introducing-code-owners
 
+cli/command/stack/**        @dnephin @vdemeester
 cli/compose/**              @dnephin @vdemeester
 contrib/completion/bash/**  @albers
 contrib/completion/zsh/**   @sdurrheimer

cli/command/stack/deploy_composefile_test.go

@@ -42,8 +42,6 @@ func (n notFound) NotFound() bool {
 
 func TestValidateExternalNetworks(t *testing.T) {
 	var testcases = []struct {
-		inspected       bool
-		noInspect       bool
 		inspectResponse types.NetworkResource
 		inspectError    error
 		expectedMsg     string
@@ -58,7 +56,7 @@ func TestValidateExternalNetworks(t *testing.T) {
 			expectedMsg:  "Unexpected",
 		},
 		{
-			noInspect: true,
+			inspectError: errors.New("host net does not exist on swarm classic"),
 			network:      "host",
 		},
 		{
@@ -74,15 +72,11 @@ func TestValidateExternalNetworks(t *testing.T) {
 	for _, testcase := range testcases {
 		fakeClient := &network.FakeClient{
 			NetworkInspectFunc: func(_ context.Context, _ string, _ types.NetworkInspectOptions) (types.NetworkResource, error) {
-				testcase.inspected = true
 				return testcase.inspectResponse, testcase.inspectError
 			},
 		}
 		networks := []string{testcase.network}
 		err := validateExternalNetworks(context.Background(), fakeClient, networks)
-		if testcase.noInspect && testcase.inspected {
-			assert.Fail(t, "expected no network inspect operation but one occurent")
-		}
 		if testcase.expectedMsg == "" {
 			assert.NoError(t, err)
 		} else {