doc: fix plurality typo on bgwriter doc sentence

Bruce Momjian <bruce@momjian.us>

Commit: 4b5e58b86e3b09daa7384dbbd0bb4cacbd9bd7c6
Author: Bruce Momjian <bruce@momjian.us>
Date: 2019-11-06T01:54:04Z
Releases: 13.0
doc:  fix plurality typo on bgwriter doc sentence

Reported-by: matthew.alton@gmail.com

Discussion: https://postgr.es/m/157204060717.1042.8194076510523669244@wrigleys.postgresql.org

Backpatch-through: 9.4

Files

PathChange+/−
doc/src/sgml/bgworker.sgml modified +1 −1

Documentation touched