Log Message:-----------Remove OID/foreign key mention in psql variable interpolation docs.
Modified Files:-------------- pgsql/doc/src/sgml/ref: psql-ref.sgml (r1.201 -> r1.202) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/psql-ref.sgml?r1=1.201&r2=1.202)
