missing line break for error message

[mmattel]

Describe the bug

When running:
ocis storage-users uploads list --help on an uninitialized instance, you get following output:

The jwt_secret has not been set properly in your config for storage-users. Make sure your /home/<user>/.ocis/config config contains the proper values (e.g. by running ocis init or setting it manually in the config/corresponding environment variable).<user>@<host>:~$

Note the trailing <user>@<host>:~$ This part should be on a new line and not directly continued after the period sign at the end of the error message, making the message hard to read.

Steps to reproduce

Expected behavior

Linebreak post the error message

Actual behavior

Error message is printed and the shell prompt gets printed directly after it.

Setup

ocis.beta6

Additional context

Testing #4256 (comment)