[vlc/el8] (12 commits) ...Fix dts_ver occurence

Summary of changes: b425a2b... Fixup (*) bf8ea03... Rebuild for dav1d SONAME bump (*) 72fe3dc... Rebuild for new x265 version (*) abe9ec5... Remove old patch (*) 9c01685... Simplify version/rc (*) 42d2416... Add macro for dts_ver (*) 62bc873... Update to 3.0.11 (*) 8137439... Clean-up old f30 patch (*) 9e8f30f... Clean-up srt (*) 7cb3507... Switch to devtoolset-8 (*) 4b8399b... Don't disable shortcommit0 (*) ffe738c... Fix dts_ver occurence (*) (*) This commit already existed in another branch; no separate mail sent