Comment # 9 on bug 1083834 from Connor McL

I second this that unar should not replace unrar and uninstall it when it is
installed.

I found several rar archives that are not compatible with unar and will produce
crc and out of bounds read errors, while unrar perfectly extracts them.

It seems unar is not feature complete and not ready to replace unrar. (again,
how was it decided that it even should replace unrar?)