[jira] [Created] (YETUS-198) shelldocs.py should display usage if no option is passed

[Kengo Seki (JIRA)]

Kengo Seki created YETUS-198:
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             Summary: shelldocs.py should display usage if no option is passed
                 Key: YETUS-198
                 URL: https://issues.apache.org/jira/browse/YETUS-198
             Project: Yetus
          Issue Type: Bug
          Components: ShellDocs
            Reporter: Kengo Seki
            Priority: Trivial


{code}
[sekikn@mobile yetus]$ shelldocs/shelldocs.py
Traceback (most recent call last):
  File "shelldocs/shelldocs.py", line 273, in <module>
    main()
  File "shelldocs/shelldocs.py", line 228, in main
    for filename in options.infile:
TypeError: 'NoneType' object is not iterable
{code}



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