Addresses #2262 [t:2262] Fix memory leak in isolation.c

git-svn-id: file:///svn/toku/tokudb@16821 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/isolation.c

@@ -41,6 +41,8 @@ int test_main (int argc, char *argv[]) {
 	    r = db->put(db, txnx, dbt_init(&key, "x", 4), dbt_init(&val, "x", 4), 0);   CKERR(r);
 	    dbt_init_malloc(&val);
 	    r = db->get(db, txna, dbt_init(&key, "x", 4), &val, 0);                     CKERR(r);
+            toku_free(val.data);
+            val.data = NULL;
 	}
 //	r = txnb->commit(txnb, 0);                                                      CKERR(r);
     }