Deprecation warning when running rake:spec

DEPRECATION: `expect { }.not_to raise_error(SpecificErrorClass, message)` is deprecated. Use `expect { }.not_to raise_error` (with no args) instead. Called from /Users/mhuffnagle/Source/puppetlabs-mysql/spec/unit/puppet/functions/mysql_deepmerge_spec.rb:33:in `block (3 levels) in <top (required)>'