As of ruff 0.1.11, the default notice-rgx does not allow for headers that have commas, like:

Copyright (c) 2018, 2019 Developers

Part of the docs do say that (?i)Copyright\s+(\(C\)\s+)?\d{4}([-,]\d{4})* is the default pattern (which works), but there's also (?i)Copyright\s+(\(C\)\s+)?\d{4}(-\d{4})* mentioned in a separate sentence in the docs and matches what's in COPYRIGHT (and reflects actual behavior). Any reason commas shouldn't be accepted?