Manually merged from https://github.com/rubygems/rubygems/pull/2636

Enable Style/EmptyLinesAroundClassBody rubocop cop.

lib/rubygems/commands/push_command.rb

@@ -5,6 +5,7 @@ require 'rubygems/gemcutter_utilities'
 require 'rubygems/package'
 
 class Gem::Commands::PushCommand < Gem::Command
+
   include Gem::LocalRemoteOptions
   include Gem::GemcutterUtilities
 
@@ -103,4 +104,5 @@ The push command will use ~/.gem/credentials to authenticate to a server, but yo
       gem_metadata["allowed_push_host"]
     ]
   end
+
 end