pgsql: Cleanup various comparisons with the constant "true".

Cleanup various comparisons with the constant "true".

Itagaki Takahiro, with slight modifications.

Branch
------
master

Details
-------
http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=5aa446c961a6fdf15ff9c398751efd6ecff0c64a

Modified Files
--------------
contrib/pg_upgrade/pg_upgrade.c | 2 +-
src/backend/access/gin/ginget.c | 2 +-
src/backend/access/gist/gistproc.c | 12 ++++++------
src/backend/commands/sequence.c | 2 +-
src/backend/tsearch/regis.c | 4 ++--
src/backend/utils/adt/geo_ops.c | 4 ++--
src/backend/utils/adt/tsrank.c | 2 +-
src/backend/utils/adt/tsvector_op.c | 2 +-
src/bin/psql/print.c | 4 ++--
src/interfaces/ecpg/ecpglib/connect.c | 4 ++--
src/interfaces/ecpg/preproc/ecpg.addons | 2 +-
11 files changed, 20 insertions(+), 20 deletions(-)