Try to produce compiler warnings for incorrect usage of printf("%m")

When Who What
2018-09-26 17:32:33 Tom Lane (tgl) Closed in commitfest 2018-09 with status: Committed
2018-09-26 17:32:33 Tom Lane (tgl) Changed committer to tgl
2018-09-26 05:50:07 Michael Paquier (michael-kun) New status: Ready for Committer
2018-09-24 17:19:56 Tom Lane (tgl) New status: Needs review
2018-09-14 02:27:09 Michael Paquier (michael-kun) New status: Waiting on Author
2018-09-14 02:27:05 Michael Paquier (michael-kun) Changed reviewers to Michael Paquier (michael-kun)
2018-09-12 18:24:22 Tom Lane (tgl) New status: Needs review
2018-09-12 07:08:09 Michael Paquier (michael-kun) New status: Waiting on Author
2018-08-10 22:11:30 Andrew Dunstan (adunstan) Closed in commitfest 2018-07 with status: Moved to next CF
2018-05-21 00:39:21 Tom Lane (tgl) Changed authors to Tom Lane (tgl)
2018-05-21 00:38:56 Tom Lane (tgl) Attached mail thread 2975.1526862605@sss.pgh.pa.us
2018-05-21 00:38:56 Tom Lane (tgl) Created patch record