Log Message:
Update from version 1.4.7 (upstream 1.004007)  to version 1.4.9 (upstream
1.004009).

Upstream changes:
1.004009 2009-11-07
        - Fix warning if your $ENV{PERL5LIB} is undef
        - Doc improvement from kgish/#perl-help@irc.perl.org
	- t0m and chrisa on #local-lib@irc.perl.org pointed out a
	PERL5LIB ordering issue with C<--self-contained>.

1.004008 2009-10-13
        - Clarify re-reading the shell config file after writing to it.
        - Clarify copyright and licensing for packaging by vendors.