Fix _run_command name displayed in log files

  def _run_command(self, name, cmd, log):

    '''Fancy run of command cmd and log output in file object log.'''

    self.info(f"Starting {name} command: {cmd}")

    log.write(f"Build command: {cmd}\n")

    capname = name.capitalize()

    log.write(f"{capname} command: {cmd}\n")

    log.flush()

    start_time = time()

    try:

      check_call(cmd, stdin=DEVNULL, stdout=log, stderr=log, shell=True, close_fds=True)

    except Exception as exp:

      raise Exception(f"Build failure: {exp}") from exp

      raise Exception(f"{capname} failure: {exp}") from exp

    end_time = time()

    self.info(f"Build duration: {end_time - start_time:.2f}s")

    log.write(f"Build duration: {end_time - start_time:.2f}\n")

    self.info(f"{capname} duration: {end_time - start_time:.2f}s")

    log.write(f"{capname} duration: {end_time - start_time:.2f}\n")

  def _build(self):

    '''Build a package.'''