Some minor fixes to the API documentation in vc.el
diff --git a/lisp/vc/vc.el b/lisp/vc/vc.el
index 8036be390a..e535b497a5 100644
--- a/lisp/vc/vc.el
+++ b/lisp/vc/vc.el
@@ -431,7 +431,7 @@
;; and displays a file name and a revision, then return a cons
;; (REVISION . FILENAME).
;;
-;; - region-history (FILE BUFFER LFROM LTO)
+;; - region-history (file buffer lfrom lto)
;;
;; Insert into BUFFER the history (log comments and diffs) of the content of
;; FILE between lines LFROM and LTO. This is typically done asynchronously.
@@ -496,7 +496,7 @@
;; `.bzrignore'. The default behavior is to read the contents of
;; the file returned by the `find-ignore-file' function.
;;
-;; - find-ignore-file
+;; - find-ignore-file file
;;
;; Return the ignore file that controls FILE, e.g. `.gitignore' or
;; `.bzrignore'.