Add alternative expected output for alter_generic

Alvaro Herrera <alvherre@alvh.no-ip.org>

Commit: 811ca1300bf8eb50ff1a84082619ba770126cdc9
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2012-09-29T03:37:13Z
Releases: 9.3.0
Add alternative expected output for alter_generic

The original only expected file failed to consider machines without
non-default collation support.  Per buildfarm.

Also, move the test to another parallel group; the one it was originally
put in is already full according to comments in the schedule file.  Per
note from Tom Lane.

Files