IMHO it is highly bogus for cperl to replace the standard
bindings of describe-{function,variable}. Have it use other
keys for cperl-info-on-command and cperl-get-help.
If it still wants to use (currently *unbound*) keys in the
C-h map, the forwarded patch might be reasonable.
BTW, I've got this in my cperl-mode-hook:
(local-set-key [(control h) f] nil)
(local-set-key [(control h) v] nil)
greg