Fixes for mysql-test failures

mysql-test/r/acl_roles_show_grants.result:
  one can do SHOW GRANTS for himself
mysql-test/t/acl_roles_set_role-table-column-priv.test:
  correct error message
mysql-test/t/acl_roles_show_grants.test:
  one can SHOW GRANTS for himself
sql/sql_acl.cc:
  bugfixing:
  * don't assign with && - it can shortcut and the second assignment won't be executed
  * correct the test in check_grant_all_columns() - want_access should not be modified
  *
sql/sql_cmd.h.OTHER:
  add new commands at the end
sql/sql_db.cc:
  don't call acl_get() if all privileges are already satisfied
  (crashes when run with --skip-grants, because acl data stuctures aren't initialized)
sql/sql_parse.cc:
  * test for current_user in get_current_user()
  * map explicitly specified user@host to current_user

1 files changed, 1 insertions, 5 deletions

diff --git a/scripts/mysql_system_tables.sql b/scripts/mysql_system_tables.sql
index de6c33fb4f9..30bea5d9b0f 100644
--- a/scripts/mysql_system_tables.sql
+++ b/scripts/mysql_system_tables.sql
@@ -41,11 +41,7 @@ CREATE TABLE IF NOT EXISTS user (   Host char(60) binary DEFAULT '' NOT NULL, Us
 -- Remember for later if user table already existed
 set @had_user_table= @@warning_count != 0;
 
-CREATE TABLE IF NOT EXISTS roles_mapping (
-	HostFk char(60) binary DEFAULT '' NOT NULL,
-	UserFk char(16) binary DEFAULT '' NOT NULL,
-	RoleFk char(16) binary DEFAULT '' NOT NULL
-);
+CREATE TABLE IF NOT EXISTS roles_mapping (HostFk char(60) binary DEFAULT '' NOT NULL, UserFk char(16) binary DEFAULT '' NOT NULL, RoleFk char(16) binary DEFAULT '' NOT NULL);
 
 
 CREATE TABLE IF NOT EXISTS func (  name char(64) binary DEFAULT '' NOT NULL, ret tinyint(1) DEFAULT '0' NOT NULL, dl char(128) DEFAULT '' NOT NULL, type enum ('function','aggregate') COLLATE utf8_general_ci NOT NULL, PRIMARY KEY (name) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin   comment='User defined functions';