Use named captures in Catalog::ParseHeader()

When Who What
2023-06-30 00:23:42 Michael Paquier (michael-kun) Closed in commitfest 2023-07 with status: Committed
2023-06-14 01:04:24 Michael Paquier (michael-kun) New status: Ready for Committer
2023-06-14 01:04:21 Michael Paquier (michael-kun) Added michael-kun as committer
2023-06-14 01:04:18 Michael Paquier (michael-kun) Added michael-kun as reviewer
2023-06-13 15:13:30 Dagfinn Ilmari Mannsåker (ilmari) Changed authors to Dagfinn Ilmari Mannsåker (ilmari)
2023-06-13 15:13:22 Dagfinn Ilmari Mannsåker (ilmari) Attached mail thread 87y1l3s7o9.fsf@wibble.ilmari.org
2023-06-13 15:13:22 Dagfinn Ilmari Mannsåker (ilmari) Created patch record