small refactoring to lower the indentation.

theano/gof/opt.py

@@ -2171,8 +2171,8 @@ class EquilibriumOptimizer(NavigatorOptimizer):
                         t_opt = time.time()
                         lopt_change = self.process_node(fgraph, node, lopt)
                         time_opts[lopt] += time.time() - t_opt
-                        # TODO: if not ...: continue
-                        if lopt_change:
+                        if not lopt_change:
+                            continue
                         process_count.setdefault(lopt, 0)
                         process_count[lopt] += 1
                         global_process_count[lopt] += 1