* files.el (auto-mode-case-fold): Change default to t.

etc/NEWS

@@ -36,6 +36,8 @@ lib-src/Makefile by hand in order to use the associated features.
 
 * Changes in Emacs 24.1
 
+** auto-mode-case-fold is now enabled by default.
+
 +++
 ** Emacs now supports display and editing of bidirectional text.
 Warning: This is still very much experimental!  The existing support

lisp/ChangeLog

+2010-03-31  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+	* files.el (auto-mode-case-fold): Change default to t.
+
 2010-03-30  Juri Linkov  <juri@jurta.org>
 
 	* dired-x.el (dired-omit-mode): Doc fix.

lisp/files.el

@@ -2159,7 +2159,7 @@ in that case, this function acts as if `enable-local-variables' were t."
   (if (fboundp 'ucs-set-table-for-input) ; don't lose when building
       (ucs-set-table-for-input)))
 
-(defcustom auto-mode-case-fold nil
+(defcustom auto-mode-case-fold t
   "Non-nil means to try second pass through `auto-mode-alist'.
 This means that if the first case-sensitive search through the alist fails
 to find a matching major mode, a second case-insensitive search is made.