ob-sed: Fix typo

* lisp/ob-sed.el: Fix a typo in a comment

lisp/ob-sed.el

@@ -35,7 +35,7 @@
 ;; In addition to the normal header arguments, ob-sed also provides
 ;; :cmd-line and :in-file. :cmd-line allows one to pass other flags to
 ;; the sed command like the "--in-place" flag which makes sed edit the
-;; file pass to it instead of outputting to standard out or to a
+;; file passed to it instead of outputting to standard out or to a
 ;; different file. :in-file is a header arguments that allows one to
 ;; tell Org Babel which file the sed script to act on.