Use clang-format 8
As of https://gitlab.cern.ch/gaudi/Gaudi/tags/v32r0 Gaudi uses clang-format-8 (see gaudi/Gaudi!872 (merged)).
This synchronizes LHCb with Gaudi.
Edited by Marco Clemencic
As of https://gitlab.cern.ch/gaudi/Gaudi/tags/v32r0 Gaudi uses clang-format-8 (see gaudi/Gaudi!872 (merged)).
This synchronizes LHCb with Gaudi.