Bug#931415: sdl2-client crashes when entering game

[Simon McVittie]

Control: severity -1 important
Control: tags -1 + patch fixed-upstream
Control: forwarded -1 https://github.com/freeciv/freeciv/commit/5e73bcd35a8a42fa24a39ad4ac915e7f9f8f2496

On Thu, 04 Jul 2019 at 14:15:22 +0300, Marko Lindqvist wrote:
>  Some people are reporting to us in freeciv upstream that sdl2-client
> always crashes for them when entering the game. We have a fix for that
> as 0001-Fix-arithmetic-error-in-SDL2-create_line.patch (2019-07-03
> 02:18 AM) in http://www.hostedredmine.com/issues/824589 You may want
> to backport that fix.

Thanks, marking the bug accordingly (I'll leave uploading/backporting
the fix to someone who knows freeciv better than I do).

    smcv