optional modules: unicore::Canonical.pl unicore::Exact.pl unicore::PVA.pl

[btb at bitrate.net]

hi-

i see the following logged when starting amavis:

INFO: no optional modules: unicore::Canonical.pl unicore::Exact.pl unicore::PVA.pl

iiuc, those particular modules aren't part of perl any longer [maybe since 5.8 or 5.9?] - i'm wondering if the functions they were used for are now provided by other perl modules.

thanks
-ben