rufus-scheduler.gemspec in rufus-scheduler-2.0.20 vs rufus-scheduler.gemspec in rufus-scheduler-2.0.21

@@ -11,9 +11,10 @@
   s.authors = [ 'John Mettraux' ]
   s.email = [ '[e-mail]' ]
   s.homepage = 'http://github.com/jmettraux/rufus-scheduler'
   s.rubyforge_project = 'rufus'
   s.summary = 'job scheduler for Ruby (at, cron, in and every jobs)'
+  s.license = 'MIT'
 
   s.description = %{
 job scheduler for Ruby (at, cron, in and every jobs).
   }.strip