Docformatter breaks lines inside RST cross-references

[DrewDevereux]

Docformatter breaks lines inside RST cross-references. For example, it will format

    """
    This class contains tests of the
    `:py:class:~aaa.bbb.cccc.dddddddddd.eeeeeeeeeeeeeeeee.Fffffffffffffffffffffffff`
    class.
    """

into

    """
    This class contains tests of the `:py:class:~ska.low.mccs.controller
    .controller_device.ControllerResourceManager` class.

which is invalid RST.

[merwok]

The source example was invalid too; is the bug still there with:

:py:class:`~aaa.bbb.cccc.dddddddddddddd.eeeeeeeeeeeeeeeeeeeeeeeee.FFFFFFFFFFFFFFFFFFF`

[DrewDevereux]

Oops, my bad. Not a bug. Thanks for the tool by the way.