vc-print-log-setup-buttons

vc-print-log-setup-buttons is a compiled Lisp function in `vc.el'.

(vc-print-log-setup-buttons WORKING-REVISION IS-START-REVISION LIMIT PL-RETURN)

Insert at the end of the current buffer buttons to show more log entries.
In the new log, leave point at WORKING-REVISION (if non-nil).
LIMIT is the number of entries currently shown.
Does nothing if IS-START-REVISION is non-nil, or if LIMIT is nil,
or if PL-RETURN is 'limit-unsupported.