2001-01-22  Morten Welinder  <terra@diku.dk>

	* src/search.c (match_is_word): I got this right-end condition
 	wrong.  Oh dear.

	* src/cell.c (cell_has_comment): Resurrect.

	* src/commands.c (cmd_search_replace_do_cell): No need for the
 	sheet argument.
	(command_push_undo): Remove duplicate call to update_after_action.
  	First check parameters, then use them.
	(command_register_undo): New function, split from
 	command_push_undo.
	(command_push_undo): Use command_register_undo.
	(truncate_undo_info): Change to take a Workbook directly.  Caller
 	changed.
	(cmd_search_replace): Use command_register_undo and eliminate
 	gross hack.