corrected number of fields for --enable_metadata
sql/sql_union.cc
    fixed a apparent typo in assert


client/mysqltest.c:
  corrected number of fields for --enable_metadata
mysql-test/r/metadata.result:
  corrected number of fields for --enable_metadata
mysql-test/r/ps_1general.result:
  corrected number of fields for --enable_metadata
mysql-test/r/ps_2myisam.result:
  corrected number of fields for --enable_metadata
mysql-test/r/ps_3innodb.result:
  corrected number of fields for --enable_metadata
mysql-test/r/ps_4heap.result:
  corrected number of fields for --enable_metadata
mysql-test/r/ps_5merge.result:
  corrected number of fields for --enable_metadata
mysql-test/r/type_enum.result:
  corrected number of fields for --enable_metadata
sql/sql_union.cc:
  fixed a apparent typo in assert