Fix copy-and-paste mistakes in documentation.

Thomas Munro <tmunro@postgresql.org>

Commit: 098344be663f5fc0ad166e7a9e1cd37721ee34d9
Author: Thomas Munro <tmunro@postgresql.org>
Date: 2019-05-08T09:16:36Z
Releases: 12.0
Fix copy-and-paste mistakes in documentation.

Reported-by: Vik Fearing

Files

Documentation touched