- Update DOSBox Staging Team copyright span to year 2021 (DOSBox Team
copyrights left untouched).
- Add DOSBox Staging Team copyright line to files we extensively
modified throughout 2020 (we add our copyright lines when number of
non-trivially modified lines gets close to 50%).
- Change "dosbox-staging team" to "DOSBox Staging Team", in line with
updated branding.
- Change MAME license identifiers to SPDX license identifiers.
- Cleanup some excessive whitespace around copyright statements.
- Do few adjustments to include order.
- Add few missing copyright identifiers (GPL-2.0-or-later,
LGPL-2.1-or-later, BSD-3-Clause) as appropriate for specific file.
- Move SPDX identifiers to the top in scripts for consistency with other
source files.
- Remove old copy of GPL2 license in italian from old translations.
Use the exact formatting suggested in COPYING file.
This change is basically a pretext to trigger a new clean build in
order to check if Coverity is capable of accepting new builds for
analysis finally.
This way there's no need to prepend every line in build job with a path
to MSYS2-installed bash, and deal with problems related to escaping
embedded shell invocations.
