gemrc bindir ignored in output of gem env

gemrc bindir ignored in output of gem env

RubyGems Environment:
  - RUBYGEMS VERSION: 3.1.2
  - RUBY VERSION: 2.7.1 (2020-03-31 patchlevel 83) [x86_64-linux]
  - INSTALLATION DIRECTORY: /home/jidar/.gem/ruby
  - USER INSTALLATION DIRECTORY: /home/jidar/.gem/ruby
  - RUBY EXECUTABLE: /usr/bin/ruby
  - GIT EXECUTABLE: /usr/bin/git
  - EXECUTABLE DIRECTORY: /home/jidar/.gem/ruby/bin
  - SPEC CACHE DIRECTORY: /home/jidar/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /home/jidar/.gem/ruby
     - /usr/share/gems
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
     - "gem" => "--user-install --bindir /home/jidar/.local/bin -N"
     - "install" => "--bindir /home/jidar/.local/bin --no-prerelease --no-document --env-shebang"
     - "update" => "--bindir /home/jidar/.local/bin --no-prerelease --no-document --env-shebang"
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /usr/lib64/qt-3.3/bin
     - /usr/local/bin
     - /usr/local/sbin
     - /usr/bin
     - /usr/sbin
     - /opt/puppetlabs/bin
     - /home/jidar/.local/bin
     - /opt/puppetlabs
     - /home/jidar/.local/bin
     - /opt/puppetlabs

---     

$ cat .gemrc 
---
gem: --user-install --bindir /home/jidar/.local/bin -N
install: --bindir /home/jidar/.local/bin --no-prerelease --no-document --env-shebang
update:  --bindir /home/jidar/.local/bin --no-prerelease --no-document --env-shebang