No, it doesn't look like a typo. Mac OS X 10.1 (and 10.2, incidentally) were distributed with 5.6.0 by default. So the Fink distribution does indeed differ from the 10.1 distribution of Perl 5.6.0.

I am amused, however, that the parent note mentioned that Mac OS X 10.3 comes with Perl 5.8.1 by default and you're suggesting using fink to install 5.8.0.