pgsql: Remove MODULES_big from test_pg_dump

Remove MODULES_big from test_pg_dump

The Makefile for test_pg_dump shouldn't have a MODULES_big line
because there's no actual compiled bit for that extension. Hopefully
this will fix the Windows buildfarm members which were complaining.

In passing, also add the 'prove_installcheck' bit to the pg_dump and
test_pg_dump Makefiles, to get the buildfarm members to actually run
those tests.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/eccfeeb631fa44850b644661d8b2ce94d9ef4fc1

Modified Files
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src/bin/pg_dump/Makefile | 3 +++
src/test/modules/test_pg_dump/Makefile | 4 +++-
2 files changed, 6 insertions(+), 1 deletion(-)