Merge pull request rails#51273 from zachasme/puma-dev-kebab-case

Kebabcase puma-dev configuration suggestion in bin/setup

Author: rafaelfranca

railties/lib/rails/generators/rails/app/templates/bin/setup.tt

@@ -1,7 +1,7 @@
 require "fileutils"
 
 APP_ROOT = File.expand_path("..", __dir__)
-APP_NAME = "<%= app_name %>"
+APP_NAME = "<%= app_name.dasherize %>"
 
 def system!(*args)
   system(*args, exception: true)