"Usage" section of help text is missing arguments

[waits]

The "usage" section of the help text for all commands doesn't mention the argument(s) required. Example:

$ dbxcli get --help
Download a file

Usage:
  dbxcli get [flags]

It should actually say something like this: dbxcli get [flags] source [destination]

Or this: dbxcli get [flags] <source> [<destination>]

This seems to apply to all commands except the ones that don't take any arguments (du and version).