bug fix space (#3926)

PaddleCV/PaddleDetection/tools/train.py

@@ -264,7 +264,7 @@ def main():
             profiler.start_profiler("All")
         elif FLAGS.is_profiler and it == 10:
             profiler.stop_profiler("total", FLAGS.profiler_path)
-                return
+            return
 
         if (it > 0 and it % cfg.snapshot_iter == 0 or it == cfg.max_iters - 1) \
            and (not FLAGS.dist or trainer_id == 0):