at the same time...

Suggested by: Frank Ridderbusch <ridderbusch.pad@sni.de>

if an operating specific expected file exists, use that for the comparison.
This allows for "legit" differences between results, like the "Result too
large" message vs "Math result not representable" ...

Also, have the failed diffs get output to regression.diffs so that its easy to
view those tests that failed

Update banner message regarding time zone.

string.

Subject: [PATCHES] to make regress.sh shell friendly to echo.

Hi,

I needed to make the following change to regress.sh to make it more
shell friendly.

The Solaris /bin/sh, and others, use \c to supress the newline.

regress.sh modified to get rid of queries.sql tests, as they are
performed vis sql/*.sql

user-friendly (and more useful)

'master' file

Commit mods to regress.sh so that split out tests are run...look forward
to finding out how to do a proper redirect to continue visual cleanup :)

psql now returns error from queries and errors files, so ignore return code.