Alphabetically order reference to include files, "S"-"Z".

contrib/pg_trgm/trgm.h

contrib/tsearch2/tsvector.c

contrib/tsearch2/tsvector_op.c

src/backend/access/heap/tuptoaster.c

src/backend/commands/tablecmds.c

src/backend/commands/typecmds.c

src/backend/optimizer/plan/subselect.c

src/backend/postmaster/syslogger.c

src/backend/tcop/utility.c

src/backend/utils/adt/varchar.c

src/backend/utils/cache/syscache.c

src/backend/utils/cache/typcache.c

...s/mb/conversion_procs/utf8_and_iso8859/utf8_and_iso8859.c

...end/utils/mb/conversion_procs/utf8_and_win/utf8_and_win.c

src/include/access/xact.h

src/include/executor/spi.h