[DRE-maint] Bug#824737: caused by a change in pygments not match

[Cédric Boutillier]

Hi,

when checking why empty <span></span> blocks were appearing, I found
that pygments are including them on purpose so that empty new lines are
not ignored by the HTML parser.

See
https://bitbucket.org/birkenfeld/pygments-main/src/176329bf17a98677643a935fb6ef5b1d0c88aeb6/pygments/formatters/html.py?at=default&fileviewer=file-view-default#html.py-705

I guess we need to skip/change tests to take care of that.

Cheers,

Cédric