PerlRequire/PerlModule and %INC

[Perrin Harkins]

There have been some messages on the Mason list about people experiencing
startup.pl being loaded twice, even without PerlFreshRestart on.  I know the
server restarts during startup, but PerlRequire and PerlModule are both
supposed to obey the laws of %INC, right?  I seem to remember some
discussion about this before, but I can't remember what the outcome was and
I can't find it in the archive.
- Perrin