Comment 0 for bug 1871685

When calling vagrant subcommands, or just vagrant itself without any argument to produce help output, every time the following block of ruby warnings appears:

$ vagrant
NOTE: Gem::Specification.default_specifications_dir is deprecated; use Gem.default_specifications_dir instead. It will be removed on or after 2020-02-01.
Gem::Specification.default_specifications_dir called from /usr/share/rubygems-integration/all/gems/vagrant-2.2.6/lib/vagrant/bundler.rb:428.
NOTE: Gem::Specification.default_specifications_dir is deprecated; use Gem.default_specifications_dir instead. It will be removed on or after 2020-02-01.
Gem::Specification.default_specifications_dir called from /usr/share/rubygems-integration/all/gems/vagrant-2.2.6/lib/vagrant/bundler.rb:428.
/usr/share/rubygems-integration/all/gems/vagrant-2.2.6/lib/vagrant/errors.rb:103: warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
/usr/share/rubygems-integration/all/gems/i18n-1.8.2/lib/i18n.rb:195: warning: The called method `t' is defined here
/usr/share/rubygems-integration/all/gems/vagrant-2.2.6/plugins/kernel_v2/config/vm.rb:354: warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
/usr/share/rubygems-integration/all/gems/vagrant-2.2.6/plugins/kernel_v2/config/vm_provisioner.rb:92: warning: The called method `add_config' is defined here
(eval):3: warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
/usr/share/rubygems-integration/all/gems/vagrant-2.2.6/lib/vagrant/ui.rb:223: warning: The called method `say' is defined here
[... actual output starts here ...]

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: vagrant 2.2.6+dfsg-2ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu25
Architecture: amd64
CurrentDesktop: MATE
Date: Wed Apr 8 20:20:25 2020
InstallationDate: Installed on 2020-04-06 (2 days ago)
InstallationMedia: Ubuntu-Server 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: vagrant
UpgradeStatus: No upgrade log present (probably fresh install)