Updated systemu to 2.4.1

Resolves ruby 1.9.3 deprecated notices

ohai.gemspec

@@ -14,7 +14,7 @@ spec = Gem::Specification.new do |s|
   s.homepage = "http://wiki.opscode.com/display/chef/Ohai"
 
   s.add_dependency "yajl-ruby"
-  s.add_dependency "systemu", "~> 2.2.0"
+  s.add_dependency "systemu", "~> 2.4.1"
   s.add_dependency "mixlib-cli"
   s.add_dependency "mixlib-config"
   s.add_dependency "mixlib-log"