#50 sfk-1.8.8.tar.gz cannot be extracted on APFS on macOS

[ilovezfs]

This only occurs on APFS (not HFS+):

bash-3.2$ tar xzf sfk-1.8.8.tar.gz 
sfk-1.8.8/testfiles/Formats/22-umlauts-???-name.txt: Can't create 'sfk-1.8.8/testfiles/Formats/22-umlauts-???-name.txt'
tar: Error exit delayed from previous errors.

Excluding the containg directory allows it to extract

tar xzf sfk-1.8.8.tar.gz --exclude sfk-1.8.8/testfiles/Formats

Ref: https://github.com/Homebrew/homebrew-core/pull/20822

[stahlworks]

the file will be renamed to 22-umlauts-aou-name.txt (without special characters) in the next update.