#1 Fix issues under Appveyor/Windows

[Anonymous]

Originally created by: hrbrmstr

pubcrawl.Rcheck.zip (github.com)

^^ is output from Appveyor's failed build (it builds but the tests fail)

I will not be spending any time on it since it works on macOS and Linux.

If you do uncover the issue and fix it, please PR and ensure you add yourself to the DESCRIPTION