Log Message:
-----------
Improve warning about creating nested named subroutines in plperl.
Per discussion.
Modified Files:
--------------
pgsql/doc/src/sgml:
plperl.sgml (r2.80 -> r2.81)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/plperl.sgml?r1=2.80&r2=2.81)