exsheets.sty-edited

An edited file exsheets.sty to overcome the last texlive 2018 update.

Edition as described in https://tex.stackexchange.com/a/469607/18280

1. Place this file in //usr/local/texlive/texmf-local/tex/latex/exsheets/ directory

2. Update the database using the texhash (or mktexlsr) application.