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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REL8_3_STABLE

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=4f59eed6eb4c7d4af586b0f6a9c3d4225ba9a8e1

Modified Files
--------------
src/interfaces/ecpg/preproc/.gitignore             |    3 -
src/interfaces/ecpg/test/.gitignore                |    4 --
.../ecpg/test/compat_informix/.gitignore           |   21 ++++++++-
src/interfaces/ecpg/test/connect/.gitignore        |   14 +++++-
src/interfaces/ecpg/test/expected/.gitignore       |    1 +
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 +++++-
9 files changed, 112 insertions(+), 25 deletions(-)