~ character in SSL certificate path not expanded

When asked to add an `[optional] SSL certificate path` during the add connection process, entering a path such as `~/certificate_dir/certificate.pem` does not work. The `~` char is not expanded to the users home directory and the file is not available. The result is an error of PERMISSION DENIED from the mysql server as the SSL certificate was not presented.

An error that describes ssl file not found could resolve this issue.