(regexp-history): Add reference to `history-length' in the doc string.

diff --git a/lisp/replace.el b/lisp/replace.el
index ebee65b2f40f2176d7ee868456bc033473a2446c..9134f6881cc85ee008cf52324b1774b6c3712a2d 100644 (file)
--- a/lisp/replace.el
+++ b/lisp/replace.el
@@ -513,7 +513,10 @@ which will run faster and will not set the mark or print anything."
 
 \f
 (defvar regexp-history nil
-  "History list for some commands that read regular expressions.")
+  "History list for some commands that read regular expressions.
+
+Maximum length of the history list is determined by the value
+of `history-length', which see.")
 
 
 (defalias 'delete-non-matching-lines 'keep-lines)