Clarifying mgmt key error
Clarifying mgmt key error

Key needs to be 48 but also only hexidecimal is supported. This is not very clear in the error nor in documentation at https://developers.yubico.com/yubikey-piv-manager/PIN_and_Management_Key.html
Yubico/yubico-piv-tool,Yubico/yubico-piv-tool,Yubico/yubico-piv-tool