complain and terminate if any of the SCCS files are checked out or
if the RCS directory already exists and is nonempty. If the
directory contains snapshot auxiliary data produced by Emacs VC mode
-for tagging, that will be used too.</para>
+to simulate RCS/CVS-style tags, that will be used too.</para>
<para>Date, time, author, comments, and branches, are all preserved.
Most SCCS keywords are translated to RCS keywords; it will