pg_upgrade docs: clarify rsync and move verification step

Bruce Momjian <bruce@momjian.us>

Commit: 46bd95e2a873feb4799b77eca7276cf758e36cca
Author: Bruce Momjian <bruce@momjian.us>
Date: 2015-09-01T20:42:43Z
Releases: 9.6.0
pg_upgrade docs:  clarify rsync and move verification step

These are adjustments based on someone using the new standby upgrade
steps.

Report by Andy Colson

Backpatch through 9.5

Files

PathChange+/−
doc/src/sgml/ref/pgupgrade.sgml modified +18 −15

Documentation touched