Error: unknown flag: --config on `xcaddy run`

[steffenbusch]

$ xcaddy version
v0.4.4 h1:xstmMhsxrDF/1rnncpi+CLbBfxEP0PjjdtXe3YFwnuo=

When I run xcaddy run --config Caddyfile-Test, I get this error:

$ xcaddy run --config Caddyfile-Test 
Error: unknown flag: --config
unknown flag: --config

I think this should be working based on the README.md section For plugin development

$ xcaddy <args...>

• <args...> are passed through to the caddy command.

For example:

$ xcaddy list-modules
$ xcaddy run
$ xcaddy run --config caddy.json

[mohammed90]

Similar to #227 but different

[jhf]

The doc is incorrect, using xcaddy -- run --config caddy.json works i.e. by using -- to pass on arguments.