Only elide label of hyperlink inset if target and not name given

[Pavel Sanda]

On Tue, Mar 24, 2020 at 06:03:42PM +0100, Jean-Marc Lasgouttes wrote:
> Le 24/03/2020 ?? 16:36, Richard Kimberly Heck a écrit :
> >It might help some to replace "Hyperlink:" with ????, the Unicode
> >hyperlink character = U+1F517. Though I'm not sure how many fonts have that.
> 
> This is unicode 6.0 from 2010, so I think we should assume that it is
> generally available.

I committed the patch above, feel free to add the character if it works for you.
Pavel