Log Message:-----------Clarify documentation that journaling is not required for WAL or data files.
Modified Files:-------------- pgsql/doc/src/sgml: wal.sgml (r1.55 -> r1.56) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/wal.sgml?r1=1.55&r2=1.56)
