format code with gofumpt

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/plugin/formatter_test.go

@@ -55,7 +55,6 @@ func TestPluginContextWrite(t *testing.T) {
 		context  formatter.Context
 		expected string
 	}{
-
 		// Errors
 		{
 			formatter.Context{Format: "{{InvalidFunction}}"},

cli/command/plugin/install_test.go

@@ -93,7 +93,6 @@ func TestInstallContentTrustErrors(t *testing.T) {
 		cli := test.NewFakeCli(&fakeClient{
 			pluginInstallFunc: func(name string, options types.PluginInstallOptions) (io.ReadCloser, error) {
 				return nil, fmt.Errorf("should not try to install plugin")
-
 			},
 		}, test.EnableContentTrust)
 		cli.SetNotaryClient(tc.notaryFunc)

cli/command/plugin/remove_test.go

@@ -12,7 +12,6 @@ import (
 )
 
 func TestRemoveErrors(t *testing.T) {
-
 	testCases := []struct {
 		args             []string
 		pluginRemoveFunc func(name string, options types.PluginRemoveOptions) error