doc: fix plurality typo on bgwriter doc sentence

Bruce Momjian <bruce@momjian.us>

Commit: 5c9b0cdc52e3ada22fa30cf8c4fcd78fdad29ea7
Author: Bruce Momjian <bruce@momjian.us>
Date: 2019-11-06T01:54:04Z
Releases: 9.5.20
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

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