From 9db0dd7bb9562c2c21d651879bf5dc43e2cc5d2f Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 1 Mar 2014 11:07:15 +0000
Subject: [PATCH] find_svn_log may return blank xml

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45230 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 tool/redmine-backporter.rb | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tool/redmine-backporter.rb b/tool/redmine-backporter.rb
index 8c124d4f79..e0e0678af4 100755
--- a/tool/redmine-backporter.rb
+++ b/tool/redmine-backporter.rb
@@ -314,8 +314,7 @@ eom
     end
 
     log = find_svn_log("##@issue]")
-    if log
-      rev = log[/revision="(\d+)/, 1]
+    if log && /revision="(?<rev>\d+)/ =~ log
       str = log[/merge revision\(s\) ([^:]+)(?=:)/]
       str.insert(5, "d")
       str = "ruby_#{TARGET_VERSION.tr('.','_')} r#{rev} #{str}."