patch 8.0.0708: some tests are old style

Problem:    Some tests are old style.
Solution:   Change a few tests from old style to new style. (pschuh,
            closes #1813)
diff --git a/src/testdir/Make_ming.mak b/src/testdir/Make_ming.mak
index dbf94f0..31dfe70 100644
--- a/src/testdir/Make_ming.mak
+++ b/src/testdir/Make_ming.mak
@@ -69,7 +69,7 @@
 	-$(VIMPROG) -u dos.vim $(NO_INITS) "+argdo set ff=dos|upd" +q *.in *.ok
 	-$(VIMPROG) -u dos.vim $(NO_INITS) "+argdo set ff=unix|upd" +q \
 		dotest.in test60.ok test_listchars.ok \
-		test_getcwd.ok test_wordcount.ok
+		test_wordcount.ok
 
 clean:
 	-@if exist *.out $(DEL) *.out