K 10
svn:author
V 2
ed
K 8
svn:date
V 27
2014-04-23T14:05:28.623475Z
K 7
svn:log
V 234
Make usage printing more consistent with other tools.

- Introduce a separate usage() function.
- Don't use argv[0]. Directly name the application, as we do elsewhere.
- Don't prepend the application name.
- Don't print two newlines.

END