Sort options

[gergelyk]

📝 Description

Solves #650

✔️ How to Test

Invoke -h with any command and check if options are sorted alphabetically.

📷 Preview

$ linode-cli linodes create -h
[...]
Create a Linode.

optional arguments:
  --authorized_keys authorized_keys
  --authorized_users authorized_users
  --backup_id backup_id
  --backups_enabled backups_enabled
  --booted booted
  --disk_encryption disk_encryption
  --firewall_id firewall_id
  --group group
  --image image
  --interfaces interfaces
  --interfaces.ip_ranges ip_ranges
  --interfaces.ipam_address ipam_address
  --interfaces.ipv4.nat_1_1 nat_1_1
  --interfaces.ipv4.vpc vpc
  --interfaces.label label
  --interfaces.primary primary
  --interfaces.purpose purpose
  --interfaces.subnet_id subnet_id
  --label label
  --metadata.user_data user_data
  --placement_group.id id
  --private_ip private_ip
  --region region
  --root_pass [ROOT_PASS]
  --stackscript_data stackscript_data
  --stackscript_id stackscript_id
  --swap_size swap_size
  --tags tags
  --type type
  -h, --help            show this help message and exit