fix ambiguous * and remove unused variable

railties/lib/rails/generators.rb

@@ -77,7 +77,7 @@ module Rails
       fallbacks.merge! config.fallbacks
       templates_path.concat config.templates
       templates_path.uniq!
-      hide_namespaces *config.hidden_namespaces
+      hide_namespaces(*config.hidden_namespaces)
     end
 
     def self.templates_path
@@ -313,7 +313,7 @@ module Rails
             begin
               path = path.sub("#{base}/", "")
               require path
-            rescue Exception => e
+            rescue Exception
               # No problem
             end
           end