Log Message:
misc/ruby-bundler: update to 2.2.4

2.2.4 (December 31, 2020)

Bug fixes:
* Fix bundle man pages display on truffleruby #4209
* Fix Windows + JRuby no longer being able to install git sources #4196

2.2.3 (December 22, 2020)

Bug fixes:
* Restore full compatibility with previous lockfiles #4179
* Add all matching variants with the same platform specificity to the
  lockfile #4180
* Fix bundler installing gems for a different platform when running in
  frozen mode and current platform not in the lockfile #4172
* Fix crash when bundle exec'ing to bundler #4175

2.2.2 (December 17, 2020)

Bug fixes:
* Fix resolver crash when a candidate has 0 matching platforms #4163
* Restore change to copy global with/without config locally upon bundle
  install #4154

2.2.1 (December 14, 2020)

Bug fixes:
* Ad-hoc fix for platform regression #4127
* Workaround JRuby + Windows issue with net-http-persistent vendored code
  #4138
* Reset also root when in a nested invocation #4140
* Restore 2.1.4 resolution times #4134
* Fix bundle outdated --strict crash #4133
* Autoload Bundler::RemoteSpecification to workaround crash on jruby #4114

2.2.0 (December 7, 2020)

Enhancements:
* New gem template: prefer require_relative to require #4066
* Always show underlying error when fetching specs fails #4061
* Add --all-platforms flag to bundle binstubs to generate binstubs for all
  platforms #3886
* Improve gem not found in source error messages #4019
* Revert resolving all Gemfile platforms automatically #4052
* Remove extra empty line from README template #4041
* Lazily load erb #4011

Bug fixes:

* Fix Bundler::Plugin::API::Source#to_s having empty source type #4084
* Raise consistent errors with or without bundle exec #4063
* Fix edge case resulting in a crash when using zeitwerk inside a nested
  bundle exec invocation #4062
* Enable specific_platform by default #4015
* Prevent remove command from deleting gemfile lines that are comments
  #4045
* Fix issue with cache_all_platforms and specific_platform configured
  #4042
* Fix incorrect error message on Windows #4039
* Make printed drive letters consistent on Windows #4038
* Load rubygems plugins from RUBYLIB during bundle install and bundle
  update #3534
* Fix specific_platform and cache_all with bundle cache --all-platforms #4022
* Bring back the possibility to install a plugin from path #4020
* Move ronn pages to lib #3997
* Fix fileutils double load when using bundler/inline #3991
* Accept responses with no etag header #3865

Documentation:
* Fix typo of bundle-install.1 (v2.1) #4079
* Add commented out example and more information link to generated gemspec
  #4034

Please refer
<https://github.com/rubygems/rubygems/blob/master/bundler/CHANGELOG.md>
for changes prior to 2.2.0 release.