avoid printing traceback for console script errors

[kalenkovich]

This error message:

Traceback (most recent call last):
  File "\\?\C:\Users\evk465\AppData\Local\mambaforge-pypy3\envs\blabpy\Scripts\vihi-script.py", line 33, in <module>
    sys.exit(load_entry_point('blabpy', 'console_scripts', 'vihi')())
  File "C:\Users\evk465\AppData\Local\mambaforge-pypy3\envs\blabpy\lib\site-packages\click\core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
  File "C:\Users\evk465\AppData\Local\mambaforge-pypy3\envs\blabpy\lib\site-packages\click\core.py", line 1078, in main
    rv = self.invoke(ctx)
  File "C:\Users\evk465\AppData\Local\mambaforge-pypy3\envs\blabpy\lib\site-packages\click\core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "C:\Users\evk465\AppData\Local\mambaforge-pypy3\envs\blabpy\lib\site-packages\click\core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "C:\Users\evk465\AppData\Local\mambaforge-pypy3\envs\blabpy\lib\site-packages\click\core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "C:\Users\evk465\AppData\Local\mambaforge-pypy3\envs\blabpy\lib\site-packages\click\core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "c:\users\evk465\blab\blabpy\repo\blabpy\vihi\cli.py", line 44, in start
    annotation_folder = checkout_recording_for_annotation(full_recording_id=recording_id, annotator_name=name)
  File "c:\users\evk465\blab\blabpy\repo\blabpy\vihi\annotating.py", line 12, in checkout_recording_for_annotation
    pn_opus_repo_path = get_lena_path()
  File "c:\users\evk465\blab\blabpy\repo\blabpy\vihi\paths.py", line 36, in get_lena_path
    return _get_modality_path('LENA')
  File "c:\users\evk465\blab\blabpy\repo\blabpy\vihi\paths.py", line 28, in _get_modality_path
    return get_subject_files_path() / modality
  File "c:\users\evk465\blab\blabpy\repo\blabpy\vihi\paths.py", line 20, in get_subject_files_path
    return get_vihi_path() / 'SubjectFiles'
  File "c:\users\evk465\blab\blabpy\repo\blabpy\vihi\paths.py", line 12, in get_vihi_path
    return get_pn_opus_path() / 'VIHI'
  File "c:\users\evk465\blab\blabpy\repo\blabpy\paths.py", line 53, in get_pn_opus_path
    raise _get_pn_opus_path_error(checked_paths=str_paths)
ValueError: Could not locate PN-OPUS at any of the following paths:

- /Volumes/pn-opus/, Z:\

Follow these steps:
- Check that you are connected to the Duke VPN.
- Check that PN-OPUS is mounted.
- Check that it is mounted to one of the default locations:

  - /Volumes/pn-opus/, Z:\

  If it is mounted elsewhere, either remount it or set an
  environment variable PN_OPUS_PATH to the mount location.

would be much more readable if the traceback was removed:

ValueError: Could not locate PN-OPUS at any of the following paths:

- /Volumes/pn-opus/, Z:\

Follow these steps:
- Check that you are connected to the Duke VPN.
- Check that PN-OPUS is mounted.
- Check that it is mounted to one of the default locations:

  - /Volumes/pn-opus/, Z:\

  If it is mounted elsewhere, either remount it or set an
  environment variable PN_OPUS_PATH to the mount location.

Ideally, there would be a --DEBUG flag that would put the traceback in.