Bug#909350: ell FTBFS with kernel 4.18 headers

[Juhani Numminen]

Control: tag -1 fixed-upstream

Dear maintainer,

Here's the upstream commit:
https://git.kernel.org/pub/scm/libs/ell/ell.git/commit/?id=409111695e76e14a6a86b21068e270a8527302a8

Cheers,
Juhani