org.el (org-link-prettify): Docstring cleanup

* org.el (org-link-prettify): Docstring cleanup.

lisp/org.el

@@ -9946,8 +9946,8 @@ Note: this function also decodes single byte encodings like
 
 (defun org-link-prettify (link)
   "Return a human-readable representation of LINK.
-The car of LINK must be a raw link the cdr of LINK must be either
+The car of LINK must be a raw link.
-a link description or nil."
+The cdr of LINK must be either a link description or nil."
   (let ((desc (or (cadr link) "<no description>")))
     (concat (format "%-45s" (substring desc 0 (min (length desc) 40)))
 	    "<" (car link) ">")))