A writability test in a prereq file polluted the binlog.

Reset the info after using those files.


mysql-test/t/ndb_binlog_ignore_db.test:
  Reset the binlog after we include several files that have little 
  to do with this test.

mysql-test/t/ndb_binlog_ignore_db.test

 -- source include/have_ndb.inc
 -- source include/have_binlog_format_row.inc
+reset master;
 
 --disable_warnings
 drop table if exists t1;