Asynchronous pruning for RubyThreadPoolExecutor#1082

joshuay03 wants to merge 1 commit intoruby-concurrency:masterruby-concurrency/concurrent-ruby:masterfrom

joshuay03:better-ruby-thread-pool-executor-pruningjoshuay03/concurrent-ruby:better-ruby-thread-pool-executor-pruningCopy head branch name to clipboard