Fix test for DDL transactions. (better regex for DDL specific message)

Author: metaskills

test/cases/migration_test_sqlserver.rb

@@ -21,7 +21,7 @@ class MigrationTestSqlserver < ActiveRecord::TestCase
       begin
         ActiveRecord::Migrator.up(SQLSERVER_MIGRATIONS_ROOT+'/transaction_table')
       rescue Exception => e
-        assert_match %r|migrations canceled|, e.message
+        assert_match %r|this and all later migrations canceled|, e.message
       end
       assert_does_not_contain @trans_test_table1, @connection.tables
       assert_does_not_contain @trans_test_table2, @connection.tables