pl/perl doc correction: subroutines

[Josh Berkus <josh(at)agliodbs(dot)com>]

All,

From 40.1. PL/Perl Functions and Arguments

"The use of named nested subroutines is dangerous in Perl, especially if
they refer to lexical variables in the enclosing scope. Because a
PL/Perl function is wrapped in a subroutine, any named subroutine you
create will be nested. In general, it is far safer to create anonymous
subroutines which you call via a coderef. See the perldiag man page for
more details."

The reference to the "perldiag" doc is confusing because it's a
dictionary of errors.  We need to be specific about what part of the page:

"See "Variable %s Will Not Stay Shared" and "Variable %s is not
available" in the perldiag man page for more details."

-- 
Josh Berkus
PostgreSQL Experts Inc.
www.pgexperts.com