[tex-live] TeXdoc error: attempt to concatenate global 'viewext' (a nil value)

[Dr. Werner Fink]

Hi,

just got a user report:

  > texdoc l2kurz
  /usr/bin/texdoc:662: attempt to concatenate global 'viewext' (a nil value)

I've verified that this happens in the lua /usr/bin/texdoc at
line 662 with TeX Live 2008 and in line 667 with TeX Live 2009:

     return config['viewer_'..viewext], viewer_replacement


Werner

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