Bug-fix visualize reconstruction

Summary:
Addresses the following issue:
https://github.com/facebookresearch/pytorch3d/issues/1345#issuecomment-1272881244

I.e., when installed from conda, `pytorch3d_implicitron_visualizer` crashes since it invokes `main()` while `main` requires a single positional arg `argv`.

Reviewed By: shapovalov

Differential Revision: D41533497

fbshipit-source-id: e53a923eb8b2f0f9c0e92e9c0866d9cb310c4799

projects/implicitron_trainer/visualize_reconstruction.py

@@ -141,7 +141,7 @@ def _get_config_from_experiment_directory(experiment_directory) -> DictConfig:
     return OmegaConf.merge(get_default_args(Experiment), config)
 
 
-def main(argv) -> None:
+def main(argv=sys.argv) -> None:
     # automatically parses arguments of visualize_reconstruction
     cfg = OmegaConf.create(get_default_args(visualize_reconstruction))
     cfg.update(OmegaConf.from_cli(argv))
@@ -150,4 +150,4 @@ def main(argv) -> None:
 
 
 if __name__ == "__main__":
-    main(sys.argv)
+    main()