aclark4life/binfiles — pull request #1 by nutjob4life (2012-10-16 23:36:49+00:00)
Title: Send usage message to stderr (Unix idiom)

The output of any program may be the input to another.

Therefore, diagnostic messages must travel a separate channel, lest they be interpreted as valid input from a previous program. The stderr stream serves as that channel.

(Yes, I'm quite anal retentive.)