cperl-vc-sccs-header

cperl-vc-sccs-header is a variable defined in `cperl-mode.el'.
Its value is

("($sccs) = ('%W%' =~ /(\\d+(\\.\\d+)+)/) ;")

Documentation:
*Special version of `vc-sccs-header' that is used in CPerl mode buffers.

You can customize this variable.