[meld] vc.svn: Fix for Subversion 1.8 repo detection

[Kai Willadsen <kaiw src gnome org>]

commit 8eb2b54b4ca3722a4357c9a7c526a0cdee0a179a
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Oct 4 08:58:39 2015 +1000

    vc.svn: Fix for Subversion 1.8 repo detection

 meld/vc/svn.py |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/meld/vc/svn.py b/meld/vc/svn.py
index 88283c6..7449e78 100644
--- a/meld/vc/svn.py
+++ b/meld/vc/svn.py
@@ -172,6 +172,7 @@ class Vc(_vc.Vc):
         vc_dir = os.path.join(root, cls.VC_DIR)
 
         # Check for repository version, trusting format file then entries file
+        repo_version = None
         for filename in ("format", "entries"):
             path = os.path.join(vc_dir, filename)
             if os.path.exists(path):