No need for --quiet since we hide output by default

Author: deivid-rodriguez

bundler/spec/support/rubygems_ext.rb

@@ -150,7 +150,7 @@ def install_gems(gemfile, path = nil)
         ENV["BUNDLE_PATH__SYSTEM"] = "true"
       end
 
-      output = `#{Gem.ruby} #{File.expand_path("support/bundle.rb", Path.spec_dir)} install --quiet`
+      output = `#{Gem.ruby} #{File.expand_path("support/bundle.rb", Path.spec_dir)} install`
       raise output unless $?.success?
     ensure
       if path