Add correct output pattern to match against

Author: robinbowes

test/unit/plugins/pre_commit/checks/puppet_test.rb

@@ -17,6 +17,6 @@
   end
 
   it "fails if script fails" do
-    check.call([fixture_file("bad.pp")]).must_match(/Parse error/i)
+    check.call([fixture_file("bad.pp")]).must_match(/Error: Could not parse/i)
   end
 end