rbenv/ruby-build v20191031

ruby-build 20191031

on GitHub

Allow group-writeable Ruby installs #1370

There used to be a post-install step that does chmod go-w under the install prefix, but this interfered with people's desired setups, plus it had the ability to inadvertantly affect files that were there originally before the Ruby installation.

The original chmod was added to appease Bundler, which can emit warnings about world-writeable directories. If this comes back, please let us know.