Log Message:
-----------
Clarify plperl subroutine name release notes item, remove now redundant Safe.pm item.
Modified Files:
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pgsql/doc/src/sgml:
release-9.0.sgml (r2.21 -> r2.22)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release-9.0.sgml?r1=2.21&r2=2.22)