Spelling fixes

contrib/ltree/ltxtquery_io.c

doc/src/sgml/biblio.sgml

doc/src/sgml/monitoring.sgml

doc/src/sgml/protocol.sgml

doc/src/sgml/ref/create_trigger.sgml

doc/src/sgml/release-8.4.sgml

doc/src/sgml/release-9.0.sgml

doc/src/sgml/release-9.1.sgml

doc/src/sgml/release-9.2.sgml

doc/src/sgml/release-9.3.sgml

doc/src/sgml/release-9.4.sgml

doc/src/sgml/release-9.6.sgml

doc/src/sgml/release-old.sgml

src/backend/access/transam/xlog.c

src/backend/executor/nodeAgg.c

src/backend/optimizer/geqo/geqo_erx.c

src/backend/port/dynloader/linux.c

src/backend/replication/logical/worker.c

src/backend/replication/walreceiverfuncs.c

src/bin/pg_basebackup/t/030_pg_recvlogical.pl