TRIGGERS.SQL_MODE, EVENTS.SQL_MODE, TRIGGERS.DEFINER:
field type is changed to VARCHAR.


mysql-test/r/information_schema.result:
  result fix
mysql-test/r/show_check.result:
  result fix
mysql-test/suite/funcs_1/r/is_columns_is.result:
  result fix
mysql-test/suite/funcs_1/r/is_events.result:
  result fix
mysql-test/suite/funcs_1/r/is_triggers.result:
  result fix
sql/sql_show.cc:
  TRIGGERS.SQL_MODE, EVENTS.SQL_MODE, TRIGGERS.DEFINER:
  field type is changed to VARCHAR.