[REVIEW 3-5] fdo#47326 fix RTF import of mixed super/nonsuper text

[Miklos Vajna]

Hi,

See

http://cgit.freedesktop.org/libreoffice/core/commit/?id=f84e0e6b1b0ec5f52ee963a62ac420cd872a771e

Regression from 3.4, due to not handling the \nosupersub RTF keyword.

I'm attaching a backport of the patch for -3-5 (plain cherry-pick won't
work as we have no testcases n -3-5).

Thanks,

Miklos