[obs-studio/el8] (4 commits) ...Added devtoolset bits for building.
Summary of changes:
e74a5f6... Remove el8 hack (*)
0e90322... Set developer toolset version for EL7. (*)
fb3294d... Bumped release for devtoolset. (*)
3eaa441... Added devtoolset bits for building. (*)
(*) This commit already existed in another branch; no separate mail sent