Sort flags for all commands.

[Random-Liu]

Sort all flags.

Before:

$ crictl ps --help
NAME:
   crictl ps - List containers

USAGE:
   crictl ps [command options] [arguments...]

OPTIONS:
   --verbose, -v             Show verbose information for containers
   --id value                Filter by container id
   --sandbox value           Filter by sandbox id
   --state value             Filter by container state
   --label value             Filter by key=value label
   --quiet                   Only display container IDs
   --output value, -o value  Output format, One of: json|yaml|table
   --all, -a                 Show all containers
   --latest, -l              Show recently created container (includes all states)
   --last value, -n value    Show last n recently created containers (includes all states) (default: 0)
   --no-trunc                Show output without truncating the ID

After:

$ crictl ps --help
NAME:
   crictl ps - List containers

USAGE:
   crictl ps [command options] [arguments...]

OPTIONS:
   --all, -a                 Show all containers
   --id value                Filter by container id
   --label value             Filter by key=value label
   --last value, -n value    Show last n recently created containers (includes all states) (default: 0)
   --latest, -l              Show recently created container (includes all states)
   --no-trunc                Show output without truncating the ID
   --output value, -o value  Output format, One of: json|yaml|table
   --quiet                   Only display container IDs
   --sandbox value           Filter by sandbox id
   --state value             Filter by container state
   --verbose, -v             Show verbose information for containers

[feiskyer]

/lgtm