Rakefile in rbs-0.20.1 vs Rakefile in rbs-1.0.0.pre

@@ -39,9 +39,13 @@
     if lib == ["yaml"]
       lib << "dbm"
       lib << "pstore"
     end
 
+    if lib == ["logger"]
+      lib << "monitor"
+    end
+
     sh "#{ruby} #{rbs} #{lib.map {|l| "-r #{l}"}.join(" ")} validate --silent"
   end
 end
 
 FileList["test/stdlib/**/*_test.rb"].each do |test|