From: Markus Teich <markus.teich@stusta.mhn.de>
Date: Mon, 15 Feb 2016 13:15:45 +0000 (+0100)
Subject: Revert "No need for usage()"
X-Git-Url: https://git.danieliu.xyz/?a=commitdiff_plain;h=65b8d5278882310eed758e6fbfd6ab9676db883c;hp=65b8d5278882310eed758e6fbfd6ab9676db883c;p=slock.git

Revert "No need for usage()"

This reverts most of commit a6dc051e3744ce5b14c54d2d246d3e8258207e76 and fixes
some related stuff:

- keep spelling fixes from original commit
- make -h and -v also work when followed by more arguments
- any unknown flag prints usage
- fix output of -v to display "slock: version 1.3" instead of "slock: slock-1.3"
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