Optional argument WARNTIME is an integer (or string) giving the number
of minutes before the appointment at which to start warning.
The default is `appt-message-warning-time'."
- (interactive "sTime (hh:mm[am/pm]): \nsMessage:
+ ;; People who like to delete trailing whitespace: READ THIS.
+ ;; This whitespace is supposed to be here.
+ (interactive "sTime (hh:mm[am/pm]): \nsMessage:
sMinutes before the appointment to start warning: ")
(unless (string-match appt-time-regexp time)
(error "Unacceptable time-string"))