Add possiblity to support specifying desired section of manpage

[Xabier Oneca -- xOneca]

Hi Harald,

On 22/12/2020 17:15, Harald van Dijk (<harald at gigawatt.nl>) wrote:
>
> On 22/12/2020 15:42, Xabier Oneca -- xOneca wrote:
> > Hi Depsterr,
> >
> >> Usage: man [-aw] MANPAGE[.SECTION]...
> >
> > That does not seem to be compatible with the standard man:
> >
> >    man [OPTION...] [SECTION] PAGE...
>
> It is not so much incompatible as it is incomplete. The widely used
> man-db implementation of man does support this form as well. It supports
> three forms of specifying the section, which all do the same thing:
>
>    man 7 man
>    man man.7
>    man 'man(7)'

Uh?! You are right! Didn't know about that! Mine supports only the
first two, but are enough for me :)

Cheers,

Xabier Oneca_,,_