Close System.out and System.err streams when they are made unreachable.

        // TODO: Doing this here works, but it seems kind of arbitrary. Find

        // a better place. The goal is to set it up for applications, but not

        // tools like am.

        System.out.close();

        System.setOut(new AndroidPrintStream(Log.INFO, "System.out"));

        System.err.close();

        System.setErr(new AndroidPrintStream(Log.WARN, "System.err"));

        commonInit();