fix: compare the right things

Author: itkovian

test/nagios.py

@@ -94,9 +94,9 @@ def test_cache(self):
             except SystemExit as err:
                 line = buffer.getvalue().rstrip()
                 logging.info("Retrieved buffer value: %s", line)
-                self.assertTrue(err.code == nagios_exit[0])
+                self.assertTrue(err.code == exit_code)
 
-            self.assertTrue(line == "%s %s" % (nagios_exit[1], message))
+            self.assertTrue(line == "%s %s" % (nagios_exit, message))
             sys.stdout = old_stdout
             buffer.close()