Cleanup: reformat all Go files

Run `go fmt` on all files, to fix their formatting.

No functional changes.

internal/worker/command_exe.go

@@ -90,7 +90,7 @@ func NewCommandExecutor(cli CommandLineRunner, listener CommandListener, timeSer
 
 		// file-management
 		"move-directory": ce.cmdMoveDirectory,
-		"copy-file": ce.cmdCopyFile,
+		"copy-file":      ce.cmdCopyFile,
 	}
 
 	return ce

internal/worker/command_file_mgmt.go

@@ -215,7 +215,6 @@ func fileCopy(src, dest string) (error, string) {
 	return nil, msg
 }
 
-
 func fileExists(filename string) bool {
 	_, err := os.Stat(filename)
 	return !errors.Is(err, fs.ErrNotExist)

internal/worker/command_file_mgmt_test.go

@@ -345,7 +345,6 @@ func TestCmdCopyFileDestinationExists(t *testing.T) {
 	assert.Error(t, f.run())
 }
 
-
 func TestCmdCopyFileSourceIsDir(t *testing.T) {
 	f := newCmdCopyFileFixture(t)
 	defer f.finish(t)
@@ -372,7 +371,6 @@ func TestCmdCopyFileSourceIsDir(t *testing.T) {
 	assert.Error(t, f.run())
 }
 
-
 func newCmdCopyFileFixture(t *testing.T) cmdCopyFileFixture {
 	mockCtrl := gomock.NewController(t)
 	ce, mocks := testCommandExecutor(t, mockCtrl)
@@ -410,11 +408,11 @@ func (f cmdCopyFileFixture) finish(t *testing.T) {
 	f.mockCtrl.Finish()
 }
 
-func (f cmdCopyFileFixture) run() error {        
+func (f cmdCopyFileFixture) run() error {
 	cmd := api.Command{
 		Name: "copy-file",
 		Parameters: map[string]interface{}{
-			"src": f.absolute_src_path,
+			"src":  f.absolute_src_path,
 			"dest": f.absolute_dest_path,
 		},
 	}