Fix typo in MTR script that triggered a deprecation warning after 10.0.7 merge

mysql-test/suite/oqgraph/regression_796647.result

@@ -15,7 +15,7 @@ weight  DOUBLE    NULL,
 seq     BIGINT    UNSIGNED NULL,
 linkid  BIGINT    UNSIGNED NULL,
 KEY (latch, origid, destid) USING HASH,
-KEY (latch, origid, destid) USING HASH
+KEY (latch, destid, origid) USING HASH
 ) ENGINE=OQGRAPH DATA_TABLE='graph_base' ORIGID='von' DESTID='nach' WEIGHT='weight';
 INSERT INTO graph_base(von,nach,weight) VALUES (3,5,2), (5,4,1), (5,6,1);
 SELECT * FROM graph_base;

mysql-test/suite/oqgraph/regression_796647.test

@@ -22,7 +22,7 @@ CREATE TABLE graph (
     seq     BIGINT    UNSIGNED NULL,
     linkid  BIGINT    UNSIGNED NULL,
     KEY (latch, origid, destid) USING HASH,
-    KEY (latch, origid, destid) USING HASH
+    KEY (latch, destid, origid) USING HASH
   ) ENGINE=OQGRAPH DATA_TABLE='graph_base' ORIGID='von' DESTID='nach' WEIGHT='weight';
 
 INSERT INTO graph_base(von,nach,weight) VALUES (3,5,2), (5,4,1), (5,6,1);