org-macs: Fix typo in docstring.

* lisp/org-macs.el (org-match-any-p): Fix typo in docstring.

lisp/org-macs.el

@@ -593,7 +593,7 @@ ones and overrule settings in the other lists."
     (looking-at regexp)))
 
 (defun org-match-any-p (re list)
-  "Non nil if regexp RE matches an element in LIST."
+  "Non-nil if regexp RE matches an element in LIST."
   (cl-some (lambda (x) (string-match-p re x)) list))
 
 (defun org-in-regexp (regexp &optional nlines visually)