Use "%s" % account rather than account.name

uncritical patch, but we can make the code a bit shorter so why not.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>

offlineimap/accounts.py

@@ -256,7 +256,7 @@ class SyncableAccount(Account):
                     thread = InstanceLimitedThread(\
                         instancename = 'FOLDER_' + self.remoterepos.getname(),
                         target = syncfolder,
-                        name = "Folder sync [%s]" % self.name,
+                        name = "Folder sync [%s]" % self,
                         args = (self.name, remoterepos, remotefolder, localrepos,
                                 statusrepos, quick))
                     thread.setDaemon(1)