#1 Fix missing XZ compression of source tarball

<thfr> Akien, the stable source archive for 3.0.5 is *not* xz compressed despite the suffix
20:20 <thfr> talking about this here: https://downloads.tuxfamily.org/godotengine/3.0.5/godot-3.0.5-stable.tar.xz
20:21 <thfr> $ file /usr/ports/distfiles/godot*
20:21 <thfr> /usr/ports/distfiles/godot-3.0.3-stable.tar.xz: XZ compressed data
20:21 <thfr> /usr/ports/distfiles/godot-3.0.4-stable.tar.xz: XZ compressed data
20:21 <thfr> /usr/ports/distfiles/godot-3.0.5-stable.tar.xz: POSIX tar archive

As reported on IRC #godotengine: ``` <thfr> Akien, the stable source archive for 3.0.5 is *not* xz compressed despite the suffix 20:20 <thfr> talking about this here: https://downloads.tuxfamily.org/godotengine/3.0.5/godot-3.0.5-stable.tar.xz 20:21 <thfr> $ file /usr/ports/distfiles/godot* 20:21 <thfr> /usr/ports/distfiles/godot-3.0.3-stable.tar.xz: XZ compressed data 20:21 <thfr> /usr/ports/distfiles/godot-3.0.4-stable.tar.xz: XZ compressed data 20:21 <thfr> /usr/ports/distfiles/godot-3.0.5-stable.tar.xz: POSIX tar archive ``` ------ You'll need to reupload the 3.0.5 tarball to fix it (or maybe just XZ-compress it directly via SSH, it seems to be a tar archive already).

Obsoleted by fbc56925d950f287c8ca58022c7a890ac9b8c7b3.