Eoin Clerkin authored Sep 02, 2021 and Florian Uhlig committed Sep 13, 2021

Ensures that modified .cpp, .C and .h files follow basic licence header guidelines.

Check line 1 for a copyright declaration with correct numerial and character placements for a date followed by institute and city.
Check line 2 for SPDX licence identifier.
Check line 3 for author and committer information.