[Bug-AUCTeX] auctex 11.86: TeX-auto-untabify is a safe local

[Stephen Gildea]

The variable TeX-auto-untabify is occasionally useful to set in the local
variables section of a file that really depends on it.  Emacs then
complains, because this variable is not marked as safe.  The following
patch adds that:

--- tex.el      2009-10-02 11:58:19.000000000 -0700
+++ tex.el      2010-07-18 15:22:47.000000000 -0700
@@ -2679,10 +2679,12 @@
 (defcustom TeX-auto-untabify nil
   "*Automatically untabify when saving the buffer."
   :group 'TeX-parse
   :type 'boolean)
 
+(put 'TeX-auto-untabify 'safe-local-variable 'TeX-booleanp)
+
 (defun TeX-auto-write ()
   "Save all relevant TeX information from the current buffer."
   (if TeX-auto-untabify
       (untabify (point-min) (point-max)))
   (if (and TeX-auto-save TeX-auto-local)