Fix syntax error in formatting string
@@ -532,7 +532,7 @@ class IntegratorMove(object):
# Run dynamics.
timer.start("{}: step({})".format(move_name, self.n_steps))
integrator.step(self.n_steps)
- timer.stop("{}: step({})".format(move_name), self.n_steps)
+ timer.stop("{}: step({})".format(move_name, self.n_steps))
self._after_integration(context)
