Properly verify the kernel dump setting

0 and 2 are the allowed options

Author: artem-sidorenko

controls/sysctl_spec.rb

@@ -323,20 +323,11 @@
   desc 'Ensure that core dumps can never be made by setuid programs or with fully qualified path'
 
   describe kernel_parameter('fs.suid_dumpable') do
-    ## those are not valid. how to?
-    # its(:value) { should eq 0 or should eq 2 }
-    # its(:value) { should match /[02]/ }
-    # its(:value) { should match /0|2/ }
-    its(:value) { should eq 2 }
+    its(:value) { should cmp(/(0|2)/) }
   end
-  # unless kernel_parameter('fs.suid_dumpable') == 2
-  #   describe kernel_parameter('fs.suid_dumpable') do
-  #     its(:value) { should eq 2 }
-  # end
   describe kernel_parameter('kernel.core_pattern') do
     its(:value) { should match %r{^/.*} }
   end
-  # end
 end
 
 control 'sysctl-32' do