pgindent run before 6.3 release, with Thomas' requested changes.

contrib/array/array_iterator.c

contrib/array/array_iterator.h

contrib/datetime/datetime_functions.c

contrib/datetime/datetime_functions.h

contrib/int8/int8.c

contrib/ip_and_mac/ip.c

contrib/ip_and_mac/mac.c

contrib/ip_and_mac/mac.h

contrib/miscutil/assert_test.c

contrib/miscutil/assert_test.h

contrib/miscutil/misc_utils.c

contrib/miscutil/misc_utils.h

contrib/pginterface/pginterface.c

contrib/sequence/set_sequence.c

contrib/sequence/set_sequence.h

contrib/soundex/soundex.c

contrib/spi/autoinc.c

contrib/spi/insert_username.c

contrib/spi/refint.c

contrib/spi/timetravel.c