(Sets And Lists): Update description of delete-dups.

diff --git a/lispref/lists.texi b/lispref/lists.texi
index 2426a4d46704e4b2370703a4832a81c77445b7ac..e3891f819717afaedef92a8ee9654801e71a812c 100644 (file)
--- a/lispref/lists.texi
+++ b/lispref/lists.texi
@@ -1436,16 +1436,9 @@ comparison.
 
 @defun delete-dups list
 This function destructively removes all @code{equal} duplicates from
-@var{list} and returns the result.  Of several @code{equal}
-occurrences of an element in @var{list}, @code{delete-dups} keeps the
-last one.
-
-The value of @var{list} after a call to this function is undefined.
-Usually, we store the return value back in @var{list}:
-
-@example
-(setq list (delete-dups list))
-@end example
+@var{list}, stores the result in @var{list} and returns it.  Of
+several @code{equal} occurrences of an element in @var{list},
+@code{delete-dups} keeps the first one.
 @end defun
 
   See also the function @code{add-to-list}, in @ref{Setting Variables},