Required flags are not printed when using --help

Summary

Steps to reproduce

$ ./bin/release-cli --server-url https://127.0.0.1:54859 --job-token token --project-id projectID create -h

NAME:
   help create - Create a Release using GitLab's Releases API https://docs.gitlab.com/ee/api/releases/#create-a-release

USAGE:
   help create [command options] [arguments...]

OPTIONS:
   --name value               The release name
   --description value        The description of the release; you can use Markdown. A file can be used to read the description contents, must exist inside the working directory; if it contains any whitespace, it will be treated as a string
   --tag-name value           The tag the release will be created from [$CI_COMMIT_TAG]
   --ref value                If tag_name doesn’t exist, the release will be created from ref; it can be a commit SHA, another tag name, or a branch name [$CI_COMMIT_SHA]
   --assets-links-name value  [DEPRECATED use --assets-link instead] List of asset link names; must be used with --asset-links-url; ignored if --assets-link is defined (e.g. --assets-links-name "asset 1" --assets-links-url "https://example.com/url/1" --assets-links-name "asset 2" --assets-links-url "https://example.com/url/2")
   --assets-links-url value   [DEPRECATED use --assets-link instead] List of asset link URLs; must be used with --asset-links-name; ignored if --assets-link is defined (e.g. --assets-links-name "asset 1" --assets-links-url "https://example.com/url/1" --assets-links-name "asset 2" --assets-links-url "https://example.com/url/2")
   --assets-link value        JSON string representation of an asset link; takes precedence over --assets-links-name and --assets-links-url (e.g. --assets-link='{"name": "Asset1", "url":"https://<domain>/some/location/1", "type": "other", "filepath": "xzy" }'
   --milestone value          List of the titles of each milestone the release is associated with (e.g. --milestone "v1.0" --milestone "v1.0-rc)"; each milestone needs to exist
   --released-at value        The date when the release will be/was ready; defaults to the current time; expected in ISO 8601 format (2019-03-15T08:00:00Z)
   --help, -h                 Show help (default: false)
preferred solution

The help text should display when a field is optional or required.