Gem::Commands::CleanupCommand#get_candidate_gems

# File tmp/rubies/ruby-4.0.0/lib/rubygems/commands/cleanup_command.rb, line 112
def get_candidate_gems
  @candidate_gems = if options[:args].empty?
    Gem::Specification.to_a
  else
    options[:args].flat_map do |gem_name|
      Gem::Specification.find_all_by_name gem_name
    end
  end
end