Tell linter that assigned is not used.

Author: mikaelfrykholm

src/pyff/test/test_log.py

@@ -50,7 +50,7 @@ def dummy_syslog(self, code, msg):
 
     def test_bad_syslog(self):
         try:
-            bad_handler = SysLogLibHandler("SLARTIBARTIFAST")
+            _bad_handler = SysLogLibHandler("SLARTIBARTIFAST")
             assert False
         except ValueError:
             pass