[steam/f26] (2 commits) ...Do not require libtxc_dxtn on Fedora 28+ (Mesa 17.3.0+), update udev rules
Summary of changes:
1267ec6... - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass (*)
4e95d5b... Do not require libtxc_dxtn on Fedora 28+ (Mesa 17.3.0+), up (*)
(*) This commit already existed in another branch; no separate mail sent