Bug#14354 Partitions: data directory clause fails

 - Use "system" to execute rm, mkdir etc
 - Use MYSQLTEST_VARDIR

mysql-test/t/partition_mgm_err.test

@@ -171,19 +171,20 @@ DROP TABLE t1;
 #
 # BUG: 14354 Partitions: data directory clause fails
 #
---exec rm -rf $MYSQL_TEST_DIR/bug14354
---exec mkdir $MYSQL_TEST_DIR/bug14354
+--system rm -rf $MYSQLTEST_VARDIR/tmp/bug14354
+--system mkdir $MYSQLTEST_VARDIR/tmp/bug14354
 disable_query_log;
 eval CREATE TABLE t1 (id int) PARTITION BY RANGE(id) (
-PARTITION p1 VALUES LESS THAN (20) ENGINE=myiasm 
-DATA DIRECTORY="$MYSQL_TEST_DIR/bug14354" 
-INDEX DIRECTORY="$MYSQL_TEST_DIR/bug14354");
+PARTITION p1 VALUES LESS THAN (20) ENGINE=myiasm
+DATA DIRECTORY="$MYSQLTEST_VARDIR/tmp/bug14354"
+INDEX DIRECTORY="$MYSQLTEST_VARDIR/tmp/bug14354");
 enable_query_log;
 INSERT INTO t1 VALUES (15);
---exec test -f $MYSQL_TEST_DIR/bug14354/t1#P#p1.MYD
---exec test -f $MYSQL_TEST_DIR/bug14354/t1#P#p1.MYI
+--system test -f $MYSQLTEST_VARDIR/tmp/bug14354/t1#P#p1.MYD
+--system test -f $MYSQLTEST_VARDIR/tmp/bug14354/t1#P#p1.MYI
 DROP TABLE t1;
---exec rm -rf $MYSQL_TEST_DIR/bug14354
+--system rm -rf $MYSQLTEST_VARDIR/tmp/bug14354
+
 
 #
 # Bug# 16534 - Trying to add multiple partitions crashes server