patch 8.2.0010: test64 is old style

Problem:    Test64 is old style.
Solution:   Convert to new style test. (Yegappan Lakshmanan, closes #5363)
diff --git a/src/Makefile b/src/Makefile
index 6b1881d..1a407ac 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2255,7 +2255,7 @@
 	test_eval \
 	test42 test44 test49 \
 	test52 test59 \
-	test64 test69 \
+	test69 \
 	test70 \
 	test86 test87 \
 	test95 test99: