Add comment for tests

Author: numbata

lib/grape.rb

@@ -77,6 +77,8 @@ def self.deprecator
   end
 end
 
+# Comment for testing purposes
+
 # https://api.rubyonrails.org/classes/ActiveSupport/Deprecation.html
 # adding Grape.deprecator to Rails App if any
 require 'grape/railtie' if defined?(Rails::Railtie) && ActiveSupport.gem_version >= Gem::Version.new('7.1')