Log Message:
-----------
Documentation for some new PL/Perl features. Patch from David Fetter,
various editorialization from Neil Conway.
Modified Files:
--------------
pgsql/doc/src/sgml:
plperl.sgml (r2.41 -> r2.42)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/plperl.sgml.diff?r1=2.41&r2=2.42)