Changing var use in queryfile.pp from mysql_host to remote_host

When specifying '%' as the mysql_host, Puppet runs error out with the following -

Notice: /Stage[main]//Mysql::Grant[db1]/Mysql::Queryfile[mysql_db_init_query_file-%-db1]/Exec[mysqlqueryfile-mysql_db_init_query_file-%-db1]/returns: ERROR 2005 (HY000): Unknown MySQL server host '%' (0)
Error: mysql -u alpha --password="alpha" -h % db1 < /tmp/db1_init.sql && touch /root/puppet-mysql/mysqlqueryfile-mysql_db_init_query_file-%-db1.run returned 1 instead of one of [0]
Error: /Stage[main]//Mysql::Grant[db1]/Mysql::Queryfile[mysql_db_init_query_file-%-db1]/Exec[mysqlqueryfile-mysql_db_init_query_file-%-db1]/returns: change from notrun to 0 failed: mysql -u alpha --password="alpha" -h % db1 < /tmp/db1_init.sql && touch /root/puppet-mysql/mysqlqueryfile-mysql_db_init_query_file-%-db1.run returned 1 instead of one of [0]

The changes below seem to fix that.