exclude_lines block exclude does not work correctly with new line def

[MalteBecker]

Describe the bug
I want to exclude complete functions with the exclude_lines config parameter. The documentation says this works if i just add "def xyz". This only works if the def definition ends in the same line.

To Reproduce
Have "def asyncio" in your [report] exclude_lines

This will work:

async def asyncio(*,client: Client,) -> Optional[Union[Any, List[GltfFile]]]:
    return (
        await asyncio_detailed(
            client=client,
        )
    ).parsed

This will not work:

async def asyncio(
    *,
    client: Client,
) -> Optional[Union[Any, List[GltfFile]]]:
    return (
        await asyncio_detailed(
            client=client,
        )
    ).parsed

Expected behavior
Both versions will exclude the complete function.

[nedbat]

This is a duplicate of #684.