Allow pg_upgrade "make check" to run on Windows/MSys.

Backpatch to 9.2.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/e442b0f0c6fd26738bafdeb5222511b586dfe4b9

Modified Files
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contrib/pg_upgrade/test.sh |   19 +++++++++++++++++--
1 files changed, 17 insertions(+), 2 deletions(-)

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Next:	From: Bruce Momjian	Date: 2012-09-04 02:52:47
	Subject: pgsql: Fix to_date() and to_timestamp() to allow specification of thed
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	Subject: pgsql: Allow pg_upgrade "make check" to run on Windows/MSys.