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

Enable Style/EmptyLinesAroundClassBody rubocop cop.

lib/rubygems/commands/stale_command.rb

@@ -2,6 +2,7 @@
 require 'rubygems/command'
 
 class Gem::Commands::StaleCommand < Gem::Command
+
   def initialize
     super('stale', 'List gems along with access times')
   end
@@ -36,4 +37,5 @@ longer using.
       say "#{name} at #{atime.strftime '%c'}"
     end
   end
+
 end