do not read #-prefix header-arg value as emacs lisp

* lisp/ob-core.el (org-babel-read): Do not read #-prefix header-arg
  value as emacs lisp.

lisp/ob-core.el

@@ -2532,14 +2532,14 @@ block but are passed literally to the \"example-block\"."
 (defun org-babel-read (cell &optional inhibit-lisp-eval)
   "Convert the string value of CELL to a number if appropriate.
 Otherwise if cell looks like lisp (meaning it starts with a
-\"(\", \"'\", \"`\" \"#\" or a \"[\") then read it as lisp,
+\"(\", \"'\", \"`\" or a \"[\") then read it as lisp,
 otherwise return it unmodified as a string.  Optional argument
 NO-LISP-EVAL inhibits lisp evaluation for situations in which is
 it not appropriate."
   (if (and (stringp cell) (not (equal cell "")))
       (or (org-babel-number-p cell)
           (if (and (not inhibit-lisp-eval)
-		   (or (member (substring cell 0 1) '("(" "'" "`" "[" "#"))
+		   (or (member (substring cell 0 1) '("(" "'" "`" "["))
 		       (string= cell "*this*")))
               (eval (read cell))
             (if (string= (substring cell 0 1) "\"")