[rkward] add bug report comment

[Tom Callaway]

commit 2cae98b42143316464d1b0f95fb8ce369acc525b
Author: Tom Callaway <spot at fedoraproject.org>
Date:   Tue Mar 10 20:41:02 2015 -0400

    add bug report comment

 rkward.spec | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/rkward.spec b/rkward.spec
index 7f7f7fa..a7094ea 100644
--- a/rkward.spec
+++ b/rkward.spec
@@ -10,6 +10,7 @@ Group:          Applications/Productivity
 License:        GPLv2+
 URL:            http://rkward.sourceforge.net/ 
 Source0:        http://downloads.sourceforge.net/rkward/%{name}-%{version}.tar.gz
+# https://sourceforge.net/p/rkward/bugs/137/
 Patch0:		rkward-0.6.3-arm-fix.patch
 
 BuildRequires:  R-devel >= %{Rversion} desktop-file-utils gettext