optparse: add trailing text in help message?

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Thanks for the help, all.  Somone pointed out the 'epilogue' attribute
to OptionParser that is new in Python 2.5, which does exactly what I
am looking for.  I did read the optparse docs for 2.5 fully before
posting this question, and now that I've taken a second look, I see
that epilog is NOT DOCUMENTED, except for in optparse.py itself.
Hopefully this will be fixed by the Python team.