fix organization wording in psql's \copyright command

When Who What
2025-07-16 16:54:40 Nathan Bossart (bossartn) Closed in commitfest PG19-1 with status: Committed
2025-07-16 16:54:40 Nathan Bossart (bossartn) Moved from CF PG19-2 to CF PG19-1
2025-07-14 20:32:15 Nathan Bossart (bossartn) New status: Ready for Committer
2025-07-14 20:32:14 Nathan Bossart (bossartn) Added bossartn as committer
2025-07-14 20:32:11 Nathan Bossart (bossartn) Attached mail thread aHVo791guQR6uqwT@nathan
2025-07-14 20:32:11 Nathan Bossart (bossartn) Created patch record