; (completion-metadata): Mention 'narrow-completions-function'.

diff --git a/lisp/minibuffer.el b/lisp/minibuffer.el
index 2c31b9f10a0dc63d2088fdeaa5393e02db98515f..4059e81cd6a6943b44988c9d831240fd3f38d98e 100644 (file)
--- a/lisp/minibuffer.el
+++ b/lisp/minibuffer.el
@@ -138,6 +138,9 @@ This metadata is an alist.  Currently understood keys are:
    of completions.  Can operate destructively.
 - `cycle-sort-function': function to sort entries when cycling.
    Works like `display-sort-function'.
+- `narrow-completions-function': function for
+  narrowing (restricting) the completions list.  This function
+  overrides `minibuffer-narrow-completions-function', which see.
 The metadata of a completion table should be constant between two boundaries."
   (let ((metadata (if (functionp table)
                       (funcall table string pred 'metadata))))