Avoid non-constant format string argument to fprintf().
authorHeikki Linnakangas <heikki.linnakangas@iki.fi>
Tue, 18 Aug 2020 10:13:09 +0000 (13:13 +0300)
committerHeikki Linnakangas <heikki.linnakangas@iki.fi>
Tue, 18 Aug 2020 10:13:44 +0000 (13:13 +0300)
commitbff41b2b8938f5e3e7d536da6d7a14a1648b4dec
tree6b20a6fe65ad785711e4225e09605499519a4257
parentb83f1bcca0bb460413da4ce856b030502b4f71c5
Avoid non-constant format string argument to fprintf().

As Tom Lane pointed out, it could defeat the compiler's printf() format
string verification.

Backpatch to v12, like that patch that introduced it.

Discussion: https://www.postgresql.org/message-id/1069283.1597672779%40sss.pgh.pa.us
src/bin/pg_basebackup/pg_basebackup.c
src/bin/pg_checksums/pg_checksums.c
src/bin/pg_rewind/pg_rewind.c