doc: Fix typos and other minor issues

Peter Eisentraut <peter_e@gmx.net>

Commit: 727add80d6c2c9b5362516718e1b0c86e800beba
Author: Peter Eisentraut <peter_e@gmx.net>
Date: 2017-09-02T03:23:15Z
Releases: 9.3.20
doc: Fix typos and other minor issues

Author: Alexander Lakhin <exclusion@gmail.com>

Files

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