Get BTRFS filesystem information.

    CLI Example:

    .. code-block:: bash

        salt '*' btrfs.info /dev/sda1

def info(device):
    '''
    Get BTRFS filesystem information.

    CLI Example:

    .. code-block:: bash

        salt '*' btrfs.info /dev/sda1
    '''
    out = __salt__['cmd.run_all']("btrfs filesystem show {0}".format(device))
    salt.utils.fsutils._verify_run(out)

    return _parse_btrfs_info(out['stdout'])