Following up my own reply:
There is a script for PVCS-to-RCS export in the CVS source archives (I
needed to hack the scripts a bit to get them to run properly,
unfortunately I do not have access to those changes).
IIRC, the changes I needed to make was to ensure that the files did not get
their keyword expanded again by RCS (adding -ko mode; this also survives
into Git), since the revision numbers are off-by-one in RCS compared to PVCS
(RCS starts at 1.1, PVCS at 1.0). I also had to extend the list of binary
file types in the PVCS-to-RCS script to cover all the binary files that were
checked in.
--
\\// Peter - http://www.softwolves.pp.se/