Comment # 6 on bug 110143 from Timothy Arceri

Should be fixed by:

commit 1af72fa4d665b9847dff9b22d7a7dea01c0960c7 (HEAD -> master, origin/master,
origin/HEAD)
Author: Timothy Arceri <tarceri@itsqueeze.com>
Date:   Fri May 3 13:59:05 2019 +1000

    util/drirc: add workarounds for bugs in Doom 3: BFG

    This makes the game playable on radeonsi.

    Cc: "19.0" "19.1" <mesa-stable@lists.freedesktop.org>
    Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110143