spec/vendored_license_spec.rb in licensee-9.14.1 vs spec/vendored_license_spec.rb in licensee-9.15.0

@@ -14,10 +14,10 @@
     context "the #{license.name} license" do
       let(:content_with_copyright) { sub_copyright_info(license) }
       let(:content) { content_with_copyright }
       let(:expected_hash) { license_hashes[license.key] }
       let(:hash_change_msg) do
-        msg = 'Did you update a vendored license? Run '.dup
+        msg = +'Did you update a vendored license? Run '
         msg << '`bundle exec script/hash-licenses`. '
         msg << 'Changes in license hashes must be a MINOR (or MAJOR) bump.'
         msg
       end