Check if there is an upgrade available for a certain package
    Accepts full or partial FMRI. Returns all matches found.

    CLI Example:

    .. code-block:: bash

        salt '*' pkg.upgrade_available apache-22

def upgrade_available(name, **kwargs):
    '''
    Check if there is an upgrade available for a certain package
    Accepts full or partial FMRI. Returns all matches found.

    CLI Example:

    .. code-block:: bash

        salt '*' pkg.upgrade_available apache-22
    '''
    version = None
    cmd = ['pkg', 'list', '-Huv', name]
    lines = __salt__['cmd.run_stdout'](cmd).splitlines()
    if not lines:
        return {}
    ret = {}
    for line in lines:
        ret[_ips_get_pkgname(line)] = _ips_get_pkgversion(line)
    return ret