[tldoc] tl message updates

[Siep Kroonenberg]

On Tue, Mar 19, 2019 at 08:15:33AM +0100, Denis Bitouzé wrote:
> Le 17/03/19 à 16h56, Karl Berry a écrit :
> 
> > I trivially changed one of the original messages, to use the word
> > "Copyright" instead of the copyright symbol in tlshell.tcl.

I moved the copyright line outside the translatable string and
reverted `Copyright' to \u00a9. Hope this does not cause the trouble
to return.

> BTW, the corresponding string is:
> 
>   ┌────
>   │ Copyright 2017, 2018 Siep Kroonenberg\n
>   │ \n
>   │ GUI interface for TeX Live Manager\n
>   │ Implemented in Tcl/Tk\n
>   └────
> 
> Shouldn't the years be "2017-2019"?

Yes. Also fixed in r50465.

-- 
Siep Kroonenberg