help output doesn't show all flags

https://github.com/cloudflare/matched-data-cli/pull/24/commits/ee53c2f0da99adca2709a279b63a41c59f69daa7

There are more flags than the help output indicate.

Can these be added (and more if they exist?):

decrypt -k, --private-key-filename File containing the base64 encoded private key
decrypt -o, --output-format Output format of matched data [default: utf8-lossy] [possible values: raw, utf8-lossy]
generate-key-pair -o, --output-format Output format of key pair [default: json] [possible values: json]