Fix pid file test

Author: DavidWittman

test/integration/default/serverspec/redis_spec.rb

@@ -19,7 +19,7 @@
   describe file('/var/run/redis/6379.pid') do
     it { should be_file }
     it { should be_owned_by 'redis' }
-    its(:size) { should_be > 0 }
+    its(:size) { should > 0 }
   end
 
   describe file('/proc/sys/vm/overcommit_memory') do