Oliver Burn - 2003-02-02

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I have added support for a "-e extension" option to the
command line tool. This will allow you to specify "-e j" in
your case.

I elected to not support regular expressions due to the
complexity. If you need regexp, I would suggest firstly
using ANT. Secondly using "find" to create the list of files
to tell Checkstyle what files to check.