927e1150bc Test: Harden lint-filenames.sh (wodry)
Pull request description:
- This fixes that only files with lower case file name suffix where found before, which contradicted the Regex to find uppercase characters in file names (including suffixes I guess).
- `--full-name` switch was added to git ls-files, to define that the found file always includes it's full path in the git project.
- since we know now that the file name includes the full path, we can harden the Regex to exclude the secp256k1 and univalue sub folders.
- use backslash line break to make code easier to read and avoid too long line.
Tree-SHA512: 9b55fe4965ae2084112b9f8a81bf9c657756c2cb5004986e7b6102a76adaf62c7d7a53257d9f13c5d8a1c75870b52c744d13830e3edd454a099e810357c914e5
