chain_spec.rb in mutant-0.8.17

- old
+ new

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 RSpec.describe Mutant::Matcher::Chain, '#call' do
   subject { object.call(env) }
 
   let(:object)    { described_class.new([matcher_a, matcher_b]) }
   let(:env)       { instance_double(Mutant::Env)                }