fix naming in skip_suppression_spec.rb

spec/skip_suppression_spec.rb

@@ -7,15 +7,15 @@
   end
 
   context "Skip Suppression" do
-    it "handles skip_suppression value from message" do
+    it "handles value from message" do
       test_email = Mailer.test_email sparkpost_data: {skip_suppression: true}
 
       @delivery_method.deliver!(test_email)
 
       expect(@delivery_method.data[:options][:skip_suppression]).to eq(true)
     end
 
-    it "does not include substitution data element if none is passed" do
+    it "does not include skip_suppression element if not supplied" do
       test_email = Mailer.test_email
       @delivery_method.deliver!(test_email)