Revert "noop: original code with noop change to force test"

This reverts commit 2e8268c.

Author: glasnt

appengine/hello_world/app.rb

@@ -16,7 +16,7 @@
 require "sinatra"
 
 # [END gae_flex_quickstart]
-# Allows all hosts in development.
+# Allows all hosts in development
 configure :development do
   set :host_authorization, { permitted_hosts: [] }
 end

run/helloworld/Dockerfile

@@ -15,7 +15,7 @@
 # [START cloudrun_helloworld_dockerfile]
 # [START run_helloworld_dockerfile]
 
-# Use the official Ruby images
+# Use the official Ruby image.
 # https://hub.docker.com/_/ruby
 FROM ruby:3.2-buster