cvs-mode-do is a compiled Lisp function in `
(cvs-mode-do CMD FLAGS FILTER &key SHOW DONT-CHANGE-DISC CVSARGS POSTPROC)
Generic cvs-mode-<foo> function.
Executes `cvs CVSARGS CMD FLAGS' on the selected files.
FILTER is passed to `cvs-applicable-p' to only apply the command to
files for which it makes sense.
SHOW indicates that CMD should be not be run in the default temp buffer and
should be shown to the user. The buffer and mode to be used are determined
DONT-CHANGE-DISC non-nil indicates that the command will not change the
contents of files. This is only used by the parser.