(defun mh-update-unseen ()
"Synchronize the unseen sequence with MH.
-Return non-nil iff the MH folder was set.
+Return non-nil if the MH folder was set.
The hook `mh-unseen-updated-hook' is called after the unseen sequence
is updated."
(if mh-seen-list
(defun mh-position-on-field (field &optional ignored)
"Move to the end of the FIELD in the header.
Move to end of entire header if FIELD not found.
-Returns non-nil iff FIELD was found.
+Returns non-nil if FIELD was found.
The optional second arg is for pre-version 4 compatibility and is
IGNORED."
(cond ((mh-goto-header-field field)
(defun mh-showing-mode (&optional arg)
"Change whether messages should be displayed.
-With ARG, display messages iff ARG is positive."
+With ARG, display messages if ARG is positive, otherwise don't display them."
(setq mh-showing-mode
(if (null arg)
(not mh-showing-mode)
+2007-08-08 Glenn Morris <rgm@gnu.org>
+
+ * url-auth.el, url-cache.el, url-dav.el, url-file.el, vc-dav.el:
+ Replace `iff' in doc-strings and comments.
+
2007-07-25 Glenn Morris <rgm@gnu.org>
* Relicense all FSF files to GPLv3 or later.