Fix argument handling

The `key` part of the argument handling has to be right after `args`, otherwise you'd get an `AttributeError` when trying to call `encode` on the `args` object.

samples/vsphere/vcenter/certificatemanagement/replace_tls_certificate.py

@@ -60,7 +60,7 @@
 cert = args.cert.encode(encoding='utf-8').decode('unicode_escape')
 
 if args.key is not None:
- key = args.encode(encoding='utf-8').key.decode('unicode_escape')
+ key = args.key.encode(encoding='utf-8').decode('unicode_escape')
 else:
  key = args.key