Clarify 'cycle-spacing-actions' docstring

* lisp/simple.el (cycle-spacing-actions): Clarify docstring.

diff --git a/lisp/simple.el b/lisp/simple.el
index f352a55e16bbd8ad73c788e2f8128fb11a42caa1..4229a898cb9679f49566201125060e557026f723 100644 (file)
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -1153,7 +1153,8 @@ which accepts one argument is allowed.  It receives the raw
 prefix arg of this cycle.
 
 In addition, an action may take the form (ACTION ARG) where
-ACTION is any action except for `restore' and ARG is either
+ACTION is one of the predefined actions (except for `restore')
+and ARG is either
 - an integer with the meaning that ACTION should always use this
   fixed integer instead of the actual prefix arg or
 - the symbol `inverted-arg' with the meaning that ACTION should