guess_fileSize() does not handle regexp like ^docs$

[ThierryO]

files in this line contains the full path, hence ^ fails as it is should be relative to the root of the package.

Unlike R CMD build, it doesn't handle folder names. IMHO ^docs$ should ignore only the docs folder at the root of the package and all its files.

[maelle]

Thanks, good catch too, and same question, any interest in doing a PR? (no worries if not, but I prefer knowing before diving into it myself 🙂 )

[ThierryO]

I'll start working on this PR first. Then on #298.