Final cleanup

src/backend/tcop/postgres.c

src/backend/utils/adt/nabstime.c

src/backend/utils/cache/lsyscache.c

src/backend/utils/cache/relcache.c

src/backend/utils/cache/syscache.c

src/backend/utils/cache/temprel.c

src/backend/utils/error/elog.c

src/backend/utils/error/exc.c

src/backend/utils/fmgr/dfmgr.c

src/backend/utils/fmgr/fmgr.c

src/backend/utils/hash/dynahash.c

src/backend/utils/init/globals.c

src/backend/utils/init/miscinit.c

src/backend/utils/init/postinit.c

src/backend/utils/misc/database.c

src/backend/utils/misc/superuser.c

src/backend/utils/misc/trace.c

src/backend/utils/mmgr/aset.c

src/backend/utils/mmgr/mcxt.c

src/backend/utils/mmgr/oset.c