Add Pathname#empty? to be consistent with Dir.empty? and File.empty?
Pathname already has several methods which work for both files and directories (for example,
Pathname#exist?) I propose adding
Pathname#empty? which would work for expose the behavior that
I think this change especially makes sense given that, just like
File.empty? was added as an alias of
File.zero?, it seems like
Pathname#zero? should also benefit from the same naming improvement provided by this alias.