patch 8.2.1525: messages from tests were not always displayed

Problem:    Messages from tests were not always displayed.
Solution:   Always show messages, the timing is always useful. (Ken Takata,
            closes #6792)
diff --git a/src/testdir/Make_dos.mak b/src/testdir/Make_dos.mak
index ba728df..8956384 100644
--- a/src/testdir/Make_dos.mak
+++ b/src/testdir/Make_dos.mak
@@ -117,7 +117,7 @@
 # Limitation: Only works with the +eval feature.
 
 newtests: newtestssilent
-	@if exist messages (findstr "SKIPPED FAILED" messages > nul) && type messages
+	@if exist messages type messages
 
 newtestssilent: $(NEW_TESTS_RES)