patch 8.2.1123: Python 3 test is old style

Problem:    Python 3 test is old style.
Solution:   Turn into new style test. (Yegappan Lakshmanan, closes #6385)
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index 14062d8..12aeffe 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -20,15 +20,12 @@
 
 # Tests that run on most systems, but not on Amiga.
 SCRIPTS_MORE1 = \
-	test52.out \
-	test87.out
-
+	test52.out
 
 # Tests that run on most systems, but not on Amiga and DOS/Windows.
 SCRIPTS_MORE2 = \
 	test49.out
 
-
 # Tests that run on most systems, but not on VMS
 SCRIPTS_MORE4 = \
 	test59.out
@@ -36,7 +33,6 @@
 # Tests specifically for MS-Windows.
 SCRIPTS_WIN32 =
 
-
 # Tests for the GUI.
 SCRIPTS_GUI =
 
@@ -309,7 +305,6 @@
 	test_alot_utf8 \
 	test_alot
 
-
 # Test targets that use runtest.vim.
 # Keep test_alot*.res as the last one, sort the others.
 # test_largefile.res is omitted, it uses too much resources to run on CI.