patch 8.2.1120: Python code not tested properly

Problem:    Python code not tested properly.
Solution:   Add more tests and convert old-style test into new-style test.
            (Yegappan Lakshmanan, closes #6370)
diff --git a/src/testdir/Make_vms.mms b/src/testdir/Make_vms.mms
index a89bb24..ff6deb4 100644
--- a/src/testdir/Make_vms.mms
+++ b/src/testdir/Make_vms.mms
@@ -116,7 +116,7 @@
 .ENDIF
 
 .IFDEF HAVE_PYTHON
-SCRIPT_PYTHON = test86.out test87.out
+SCRIPT_PYTHON = test87.out
 .ENDIF
 
 .in.out :