* lisp/vc/vc-annotate.el (vc-annotate-background-mode): Use `with-demoted-errors'

instead of `ignore-errors'.

Fixes: debbugs:18189

lisp/ChangeLog

+2014-08-12  Juri Linkov  <juri@jurta.org>
+
+	* vc/vc-annotate.el (vc-annotate-background-mode):
+	Use `with-demoted-errors' instead of `ignore-errors'.  (Bug#18189)
+
 2014-08-12  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* files.el (out-of-memory-warning-percentage): Turn it off by default.

lisp/vc/vc-annotate.el

@@ -57,7 +57,7 @@ is applied to the background."
   :set (lambda (symbol value)
 	 (set-default symbol value)
 	 (when (boundp 'vc-annotate-color-map)
-	   (ignore-errors
+	   (with-demoted-errors
 	     ;; Update the value of the dependent variable.
 	     (custom-reevaluate-setting 'vc-annotate-color-map))))
   :version "24.5"