pgsql: Still more .gitignore cleanup.

Still more .gitignore cleanup.

Fix overly-enthusiastic ignores, as identified by
git ls-files -i --exclude-standard

Branch
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REL9_0_STABLE

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=4afd557901448a2c9c6d407e8e174bd2c0f3a28f

Modified Files
--------------
src/interfaces/ecpg/test/.gitignore | 4 --
.../ecpg/test/compat_informix/.gitignore | 21 ++++++++-
src/interfaces/ecpg/test/connect/.gitignore | 13 +++++-
src/interfaces/ecpg/test/pgtypeslib/.gitignore | 13 +++++-
src/interfaces/ecpg/test/preproc/.gitignore | 25 ++++++++++-
src/interfaces/ecpg/test/sql/.gitignore | 43 ++++++++++++++++++-
src/interfaces/ecpg/test/thread/.gitignore | 13 +++++-
7 files changed, 110 insertions(+), 22 deletions(-)