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_2_STABLE

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=9825ad9f4fd2da51e6decbf62c55023cec09fa43

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 | 13 ++++-
src/interfaces/ecpg/test/pgtypeslib/.gitignore | 13 ++++-
src/interfaces/ecpg/test/preproc/.gitignore | 25 ++++++++++-
src/interfaces/ecpg/test/sql/.gitignore | 45 ++++++++++++++++++-
src/interfaces/ecpg/test/thread/.gitignore | 13 ++++-
8 files changed, 112 insertions(+), 25 deletions(-)