[meld] Set vcview working directory to "." if otherwise empty (closes bgo#601580)

[Kai Willadsen <kaiw src gnome org>]

commit 7e25f3fbc46fd5f897e6770f208e74d1085fc121
Author: Martyn Thomas <martyn thomas gmail com>
Date:   Thu Nov 12 08:56:42 2009 +1000

    Set vcview working directory to "." if otherwise empty (closes bgo#601580)

 meld/vcview.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/meld/vcview.py b/meld/vcview.py
index 4ed06d5..b471354 100644
--- a/meld/vcview.py
+++ b/meld/vcview.py
@@ -47,7 +47,7 @@ def _commonprefix(files):
     if len(files) != 1:
         workdir = misc.commonprefix(files)
     else:
-        workdir = os.path.dirname(files[0])
+        workdir = os.path.dirname(files[0]) or "."
     return workdir
 
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