perl-modules branch: Reduce perl-alternatives.xml to only cover the cpan automated install, and index that under cpan. Add a note to remind me to deal with Data::Uniquid and the unsafe variant of the standard install.
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/branches/perl-modules@20485 af4574ff-66df-0310-9fd7-8a98e5e911e0
