pkgChunker-v1.0b1.pkg installs an non-functional binary on macOS Catalina

[sdagley]

The pkgChunker binary installed by the pkgChunker-v1.0b1.pkg on the releases page is non-functional on macOS Catalina (I have not attempted to test it on Mojave). Any attempt to run it, even if just with the -h option, returns what looks like a string of random characters. The script itself works, so to work around the bad binary just download a raw copy of the script and run it directly.