patch 8.0.1022: test 80 is old style

Problem:    Test 80 is old style.
Solution:   Turn it into a new style test. (Yegappan Lakshmanan)
diff --git a/src/testdir/Make_vms.mms b/src/testdir/Make_vms.mms
index 4181e0b..e48789b 100644
--- a/src/testdir/Make_vms.mms
+++ b/src/testdir/Make_vms.mms
@@ -86,7 +86,7 @@
        test64.out \
        test66.out test68.out test69.out \
        test72.out \
-       test77a.out test78.out test79.out test80.out \
+       test77a.out test78.out test79.out \
        test88.out \
        test94.out \
        test95.out test99.out \