(reb-update-modestring): Don't use concat for integers.

From Juanma Barranquero <lektu@uol.com.br>.

diff --git a/lisp/emacs-lisp/re-builder.el b/lisp/emacs-lisp/re-builder.el
index ace889c962020d70f4b748696cdccdc07d61e66d..02b3658ac695d9b4d08b37a1d2e9d8fb6d9192ab 100644 (file)
--- a/lisp/emacs-lisp/re-builder.el
+++ b/lisp/emacs-lisp/re-builder.el
@@ -518,7 +518,7 @@ optional fourth argument FORCE is non-nil."
   (setq reb-mode-string
        (concat
         (if reb-subexp-mode
-            (concat " (subexp " (or reb-subexp-displayed "-") ")")
+             (format " (subexp %s)" (or reb-subexp-displayed "-"))
           "")
         (if (not (reb-target-binding case-fold-search))
             " Case"