fix log dir
This pull request **fixes 1 alert** when merging bdac5e9dff261cc3eb92ec5ce82746e0dab2a369 into a42987279f0226aea7d776840ff06a56c4bfb259 - [view on LGTM.com](https://lgtm.com/projects/g/NVIDIA/NeMo/rev/pr-7fa88b8e67e895c005a893c335113b38bc7711b1)

**fixed alerts:**

* 1 for Except block handles &#39;BaseException&#39;
Signed-off-by: Yang Zhang <yangzhang@nvidia.com>