pgsql: Update copyright for 2016

Update copyright for 2016

On closer inspection, the reason copyright.pl was missing files is
that it is looking for 'Copyright (c)' and they had 'Copyright (C)'.
Fix that, and update a couple more that grepping for that revealed.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/48c9f2889a4ad25a771d13b88f2778a306f2d970

Modified Files
--------------
contrib/auth_delay/auth_delay.c | 2 +-
src/test/modules/test_ddl_deparse/test_ddl_deparse.c | 2 +-
src/test/modules/test_rls_hooks/test_rls_hooks.c | 2 +-
src/test/modules/test_rls_hooks/test_rls_hooks.h | 2 +-
src/test/modules/test_shm_mq/setup.c | 2 +-
src/test/modules/test_shm_mq/test.c | 2 +-
src/test/modules/test_shm_mq/test_shm_mq.h | 2 +-
src/test/modules/test_shm_mq/worker.c | 2 +-
src/test/modules/worker_spi/worker_spi.c | 2 +-
9 files changed, 9 insertions(+), 9 deletions(-)