Write to stderr at certain points

[kbknapp]

Some light reading about stderr

Currently everything is spit to stdout.

One thing I'm unsure about is identifying the process, like I'd like to do:

$ myprog --some args
myprog: unrecognized argument '--some'

USAGE:
    myprog [FLAGS] [ARGS]

For more information try --help

But the question is, do I use the bin_name or name. I'm leaning towards bin_name as that's typically the standard.

This also mean's myprog: some error would replace the current error: some error format.