Proposed argument changes to ntpq (fixing bug #319)

[Eric S. Raymond]

Gary E. Miller via devel <devel at ntpsec.org>:
> Yo Eric!
> 
> On Wed, 7 Jun 2017 22:46:42 -0400
> "Eric S. Raymond" <esr at thyrsus.com> wrote:
> 
> > Gary E. Miller via devel <devel at ntpsec.org>:
> > > Just make the filename optional. So -l or -l filename  
> > 
> > Sadly, not practical with any varint of C or Python getopt. We'd have
> > to roll our own, and that way madnes lies.
> 
> man geetopt:
> 
> "If such a character is followed by a colon, the option requires an
> argu‐ ment, so getopt() places a pointer to the following text in the
> same argv-element, or the text of the following argv-element, in optarg.
> Two colons mean an option takes an optional arg;"

man getopt gets you the documentation of the *shell* getopt. Not useful here.

Mind you I didn't know it had this capability, so I learned something.
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