one of the documented procedures in this installation of the ACS
vc_commit   path   message
What it does:
Commit a change to the repository, along with a log message.
Defined in: /web/philip/tcl/vc-defs.tcl

Source code:

    # Don't have to commit directories.  We do this check to make it
    # conventient to add+commit a big list of files.
    if [file isdirectory $path] {

    if [catch { vc_exec "commit -m \"$message\" [vc_path_relative $path]" } errmsg] {
	ns_log Error "vc_commit: $errmsg"
	return 1
    } else {
	return 0