Note that using `servo --devtools http://example.org` doesn't work. In
that case either the port must be specified or the option moved to the
end. But this is the same for other such options, e.g. `--profile`.
Source-Repo: https://github.com/servo/servo
Source-Revision: 9be266270b2e8d00f4cec0f1b262efce85913640
