pgsql: Fix obsolete config-module-exclusion logic in vcregress.pl.

Fix obsolete config-module-exclusion logic in vcregress.pl.

The recent addition of regression tests to uuid-ossp exposed the fact
that the MSVC build system wasn't being consistent about whether it was
building/testing that contrib module, ie, it would try to test the module
even when it hadn't built it. The same hazard was latent for sslinfo.

For the moment I just copied the more up-to-date logic from point A to
point B, but this is screaming for refactoring.

Per buildfarm results.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/8600031147cee7845e1ad9e64304e1f5fe585515

Modified Files
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src/tools/msvc/Install.pm | 1 +
src/tools/msvc/vcregress.pl | 8 ++++++--
2 files changed, 7 insertions(+), 2 deletions(-)