window.el has no provide

[Jordon Biondo]

Is there a reason that there is no provide in window.el? If not, can one be 
added?

diff --git lisp/window.el lisp/window.el
index abc6006..3f43a71 100644
--- lisp/window.el
+++ lisp/window.el
@@ -7990,4 +7990,6 @@ Otherwise, consult the value of 
`truncate-partial-width-windows'
 (define-key ctl-x-map "+" 'balance-windows)
 (define-key ctl-x-4-map "0" 'kill-buffer-and-window)
 
+(provide 'window)
+
 ;;; window.el ends here