Update docs that GNU tar versions >=1.16 exit with 1 on files changed, 2

Bruce Momjian <bruce@momjian.us>

Commit: 5fb01d829a2cea3c4fdf0fc5ac3cb7c2057150ba
Author: Bruce Momjian <bruce@momjian.us>
Date: 2007-07-16T22:20:51Z
Releases: 8.3.0
Update docs that GNU tar versions >=1.16 exit with 1 on files changed, 2
on other errors.

Files

PathChange+/−
doc/src/sgml/backup.sgml modified +6 −8