Add a new test case for ipaddr 1.2.0 + drb/acl

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60271 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/drb/test_acl.rb

@@ -88,6 +88,7 @@ class ACLEntryTest < Test::Unit::TestCase
 
     assert_raise(IPAddr::InvalidPrefixError) {
       ACL::ACLEntry.new('192.168.0.0/33')
+      ACL::ACLEntry.new('192.168.0.0/255.255.0.255')
     }
   end