Let the byte-compiler know about dynamic var

This should get rid of the warning in older emacsen.

Author: magnars

Diff for: clojure-mode.el

@@ -60,6 +60,7 @@
 
 (eval-when-compile
   (defvar calculate-lisp-indent-last-sexp)
+  (defvar delete-pair-blink-delay)
   (defvar font-lock-beg)
   (defvar font-lock-end)
   (defvar paredit-space-for-delimiter-predicates)