.jshintrc

setup: fix incomplete implementation of Command

`test-install.t` fails without the `get_outputs` method being implemented,
which is used when, `self.report` is `True`.

When 8d7eaff92f9c introduced this change, they probably ran `test-install.t`
without `HGTESTS_ALLOW_NETIO=1`, which does not trigger this codepath.

Differential Revision: https://phab.mercurial-scm.org/D12482

{
    // Enforcing
    "eqeqeq"        : true,     // true: Require triple equals (===) for comparison
    "forin"         : true,     // true: Require filtering for..in loops with obj.hasOwnProperty()
    "freeze"        : true,     // true: prohibits overwriting prototypes of native objects such as Array, Date etc.
    "nonbsp"        : true,     // true: Prohibit "non-breaking whitespace" characters.
    "undef"         : true,     // true: Require all non-global variables to be declared (prevents global leaks)

    // Environments
    "browser"       : true      // Web Browser (window, document, etc)
}