This is the only place where we use key_comment, so maybe we can replace it with

```
key.store(public_file=file_handler, comment=options.key_comment)
```

and remove line 42.

---------------------

Now that I look at the whole code, I see that key_size is defined as a separate variable since it is used in 2 places... the other one being the output message.

Maybe we should also include the comment in the `message` output.