Hello,
I propose following patch, as PR39730 was fixed recently.
--- t/modules/negotiation.t.orig 2019-01-29 07:49:18.495899602 +0000
+++ t/modules/negotiation.t 2019-01-29 07:52:38.428960368 +0000
@@ -8,7 +8,11 @@ use Apache::TestUtil;
## mod_negotiation test (see extra.conf.in)
my ($en, $fr, $de, $fu, $bu, $zh) = qw(en fr de fu bu zh-TW);
-my @language = ($en, $fr, $de, $fu, $zh);
+
+my @language = ($en, $fr, $de, $fu);
+if (have_min_apache_version("2.4.38")) {
+ push @language, $zh;
+}
my @ct_tests = (
# [ Accept header, Expected response ]
Petr