Log Message:
Changes 8.3.17:
* Require execute permission on the trigger function for CREATE TRIGGER
* Convert newlines to spaces in names written in pg_dump comments
* Fix btree index corruption from insertions concurrent with vacuuming
* Allow non-existent values for some settings in ALTER USER/DATABASE SET
* Track the OID counter correctly during WAL replay, even when it wraps around
* Fix regular expression back-references with * attached
* Fix recently-introduced memory leak in processing of inet/cidr values
* Avoid double close of file handle in syslogger on Windows
* Fix I/O-conversion-related memory leaks in plpgsql
* Improve pg_dump's handling of inherited table columns
* Fix pg_restore's direct-to-database mode for INSERT-style table data
* Fix error in contrib/intarray's int[] & int[] operator
* Fix error detection in contrib/pgcrypto's encrypt_iv() and decrypt_iv()
* Fix one-byte buffer overrun in contrib/test_parser
* Use __sync_lock_test_and_set() for spinlocks on ARM, if available
* Use -fexcess-precision=standard option when building with gcc versions that
  accept it
* Allow use of threaded Python on FreeBSD