The help message of snapcraft export-login doesn't explain what the "login-file" input actually is. Help message: ``` $ snapcraft export-login --help Usage: snapcraft export-login [options] <<login-file>> Summary: Log in to the Snap Store with your Ubuntu One SSO credentials. If you do not have any, you can create them at https://login.ubuntu.com To use the alternative authentication mechanism (Candid), set the environment variable 'SNAPCRAFT_STORE_AUTH' to 'candid'. This command exports credentials to use on systems where login is not possible or desired. Options: -h, --help: Show this help message and exit -v, --verbose: Show debug information and be more verbose -q, --quiet: Only show warnings and errors, not progress --verbosity: Set the verbosity level to 'quiet', 'brief', 'verbose', 'debug' or 'trace' -V, --version: Show the application version and exit --snaps: Comma-separated list of snaps to limit access --channels: Comma-separated list of channels to limit access --acls: Comma-separated list of ACLs to limit access --expires: Date/time (in ISO 8601) when this exported login expires --experimental-login: Deprecated option to enable candid login. Set SNAPCRAFT_STORE_AUTH=candid instead See also: login logout whoami For a summary of all commands, run 'snapcraft help --all'. ```