Re: groupdefault (Re: mutually exclusive group of options)

Hi

I've committed further changes into the CVS

now mode options are printed in the --help output (and if --long-help is 
used, it also prints the alternatives for usage strings).

I've also documented mode options.

Moreover, required mode options can be specified (of course, a required 
mode option is checked only if that mode is used).

look forward to getting feedback :-)

cheers
	Lorenzo

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Lorenzo Bettini, PhD in Computer Science, DSI, Univ. di Firenze
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