getopt that automatically prints usage

Igor Lesik curoles at
Sun Feb 7 16:41:23 PST 2010

I like how boost program_options library allows to keep together options and 
the help strings and automatically generate help message. So I did something 
similar by writing a wrapper around std.getopt.getopt that automatically 
generates help/usage message; just would like to share it; may be something 
like that could be added into std.getopt in future.

here is an example and code: 

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