D5745: status: extract helper for producing relative or absolute path for UI

[Yuya Nishihara]

> > +    relative = pats or ui.configbool('commands', 'status.relative'):
> > +    uipathfn = scmutil.getuipathfn(repo, relative)
> 
> Not sure if it's worth fixing the syntax error here before it goes public.  I only noticed because I was bisecting a test failure.  The next patch drops the trailing `:`.

Fixed, thanks.