bug#15589: [PATCH] `how-many' throws when called with two arguments.

[Oleh]

Hi,

It's strange that it throws, since there's a sane default for `rend'
which is (point-max). It's currently used when neither `rstart' or
`rend' are provided.

I attach a patch.

>From e315068e21519a11b0f28e8d45fb08b5bab35850 Mon Sep 17 00:00:00 2001
From: Oleh Krehel <ohwoeowho@gmail.com>
Date: Fri, 11 Oct 2013 16:27:20 +0200
Subject: [PATCH] * replace.el (how-many): rend argument defaults to
 (point-max) if not provided.

---
 replace.el | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/replace.el b/replace.el
index abb59a6..d92fb68 100644
--- a/replace.el
+++ b/replace.el
@@ -810,9 +810,12 @@ a previously found match."
    (keep-lines-read-args "How many matches for regexp"))
   (save-excursion
     (if rstart
-       (progn
-         (goto-char (min rstart rend))
-         (setq rend (max rstart rend)))
+        (if rend
+            (progn
+              (goto-char (min rstart rend))
+              (setq rend (max rstart rend)))
+          (goto-char rstart)
+          (setq rend (point-max)))
       (if (and interactive transient-mark-mode mark-active)
          (setq rstart (region-beginning)
                rend (region-end))
-- 
1.8.4

regards,
Oleh