Merge lp:~gliptak/duplicity/415619 into lp:duplicity/0.6

[Gábor Lipták]

=== modified file 'duplicity/tarfile.py'
--- duplicity/tarfile.py	2012-11-09 03:21:40 +0000
+++ duplicity/tarfile.py	2013-10-05 15:16:42 +0000
@@ -2282,7 +2282,7 @@
                     if sys.platform != "os2emx":
                         os.chown(targetpath, u, g)
             except EnvironmentError, e:
-                raise ExtractError("could not change owner")
+                raise ExtractError("could not change owner to %d:%d" % (u, g))
 
     def chmod(self, tarinfo, targetpath):
         """Set file permissions of targetpath according to tarinfo.