docs: def get_commit_command(self, message, author=None):
          """Get the command to commit changes to tracked files in the working tree."""
          command = ['git']
          if author:
              command.extend(('-c', 'user.name=%s' % author.name))
              command.extend(('-c', 'user.email=%s' % author.email))
          command.append('commit')
          command.append('--all')
          command.append('--message')
          command.append(message)
          return command