gettext.gemspec in gettext-3.4.0 vs gettext.gemspec in gettext-3.4.1

- old
+ new

@@ -36,7 +36,7 @@
   s.add_development_dependency("rake")
   s.add_development_dependency("red-datasets")
   s.add_development_dependency("test-unit")
   s.add_development_dependency("test-unit-rr")
   s.add_development_dependency("yard")
-  s.license = "Ruby or LGPLv3+"
+  s.licenses = ["Ruby", "LGPL-3.0+"]
 end