* international/quail.el (quail-input-method): Use with-silent-modifications

lisp/ChangeLog

 2015-03-11  Stefan Monnier  <monnier@iro.umontreal.ca>
+	* international/quail.el (quail-input-method):
+	Use with-silent-modifications.
+
 	* simple.el (goto-history-element): Don't burp on t history.
 2015-03-10  Paul Eggert  <eggert@cs.ucla.edu>

lisp/international/quail.el

@@ -202,7 +202,7 @@ It is an alist of translations and corresponding keys."
 See also the documentation of `quail-define-package'."
   (nth 11 quail-current-package))
 (defsubst quail-overlay-plist ()
-  "Return property list of an overly used in the current Quail package."
+  "Return property list of an overlay used in the current Quail package."
   (nth 12 quail-current-package))
 (defsubst quail-update-translation-function ()
   "Return a function for updating translation in the current Quail package."
@@ -1335,9 +1335,7 @@ If STR has `advice' text property, append the following special event:
 	  overriding-local-map)
       (list key)
     (quail-setup-overlays (quail-conversion-keymap))
-    (let ((modified-p (buffer-modified-p))
-	  (buffer-undo-list t)
-	  (inhibit-modification-hooks t))
+    (with-silent-modifications
       (unwind-protect
 	  (let ((input-string (if (quail-conversion-keymap)
 				  (quail-start-conversion key)
@@ -1349,7 +1347,6 @@ If STR has `advice' text property, append the following special event:
 		  (list (aref input-string 0))
 		(quail-input-string-to-events input-string))))
 	(quail-delete-overlays)
-	(set-buffer-modified-p modified-p)
 	;; Run this hook only when the current input method doesn't require
 	;; conversion.  When conversion is required, the conversion function
 	;; should run this hook at a proper timing.