rubygems/rubygems v3.2.31

on GitHub

Enhancements:

• Don't pass empty DESTDIR to nmake since it works differently from
  standard make. Pull request #5057 by hsbt
• Fix gem install vs gem fetch inconsistency. Pull request #5037 by
  deivid-rodriguez
• Lazily load and vendor optparse. Pull request #4881 by
  deivid-rodriguez
• Use a vendored copy of tsort internally. Pull request #5027 by
  deivid-rodriguez

Bug fixes:

• Fix ruby setup.rb when --prefix is passed. Pull request #5051 by
  deivid-rodriguez
• Don't apply --destdir twice when running setup.rb. Pull request
  #2768 by alyssais