(setq stolfi-time-stamp-initial "Last edited on DATE TIME by USER")
(setq stolfi-time-stamp-start  "^[^A-Za-z]*Last edited on ")
(setq stolfi-time-stamp-format "%04y-%02m-%02d %02H:%02M:%02S by %u")
(setq stolfi-time-stamp-end    "[^A-Za-z0-9]*$")
(setq stolfi-time-stamp-active nil)
(setq stolfi-time-stamp-delete t)
(setq stolfi-time-stamp-warn-inactive nil)
(setq stolfi-time-stamp-warn-unstamped nil)