patch 9.1.0807: tests: having 'nolist' in modelines isn't always desired

Problem:  tests: having 'nolist' in modelines isn't always desired
Solution: remove 'nolist' from modeline (zeertzjq)

closes: #15910

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/testdir/viewdumps.vim b/runtime/syntax/testdir/viewdumps.vim
index e1624ff..9c4de1b 100644
--- a/runtime/syntax/testdir/viewdumps.vim
+++ b/runtime/syntax/testdir/viewdumps.vim
@@ -21,4 +21,4 @@
 # Anticipate non-Latin-1 characters in "input/" files.
 set encoding=utf-8 termencoding=utf-8
 
-# vim:fdm=syntax:sw=2:ts=8:noet:nolist:nosta:
+# vim:fdm=syntax:sw=2:ts=8:noet:nosta: