dub lint returns,
dub lint
Unknown command: lint
USAGE: dub [--version] [<command>] [<options...>] [--
[<application arguments...>]]
Manages the DUB project in the current directory. If the command
is omitted,
DUB will default to "run". When running an application, "--" can
be used to
separate DUB options from options passed to the application.
Run "dub <command> --help" to get help for a specific command.
You can use the "http_proxy" environment variable to configure a
proxy server
to be used for fetching packages.
Available commands
==================
Package creation
----------------
init [<directory> [<dependency>...]]
Initializes an empty package skeleton
Build, test and run
-------------------
run [<package>] Builds and runs a package (default
command)
build [<package>] Builds a package (uses the main package in
