Why do not use Shellwords.join method?

[SwagDevOps]

subprocess/lib/subprocess.rb

Line 149 in b914fb4

@command, @status = cmd.join(' '), status

@command, @status = Shellwords.join(cmd), status

https://ruby-doc.org/stdlib-2.5.0/libdoc/shellwords/rdoc/Shellwords.html#method-c-shelljoin