Tidy some GUC C variable initializations

2022-10-31 05:05:40 Michael Paquier (michael-kun) Closed in commitfest 2022-11 with status: Committed 2022-10-27 20:25:29 Peter Smith (smithpb2250) Changed targetversion to 16 2022-10-27 20:20:56 Peter Smith (smithpb2250) New status: Needs review 2022-10-27 02:08:07 Michael Paquier (michael-kun) New status: Waiting on Author 2022-10-27 02:08:03 Michael Paquier (michael-kun) Added michael-kun as committer 2022-10-26 20:21:40 Justin Pryzby (justinpryzby) Added justinpryzby as reviewer 2022-10-12 19:12:21 Nathan Bossart (bossartn) New status: Ready for Committer 2022-10-12 19:12:18 Nathan Bossart (bossartn) Added bossartn as reviewer 2022-10-06 05:20:37 Peter Smith (smithpb2250) Changed authors to Peter Smith (smithpb2250) 2022-10-06 05:17:41 Peter Smith (smithpb2250) Attached mail thread CAHut+PtHE0XSfjjRQ6D4v7+dqzCw=d+1a64ujra4EX8aoc_Z+w@mail.gmail.com 2022-10-06 05:17:41 Peter Smith (smithpb2250) Created patch record