Tests: fixed h2_max_requests.t TODOs on linux.

h2_max_requests.t

diff --git a/h2_max_requests.t b/h2_max_requests.t
index c22c4ce..c266c7f 100644
--- a/h2_max_requests.t
+++ b/h2_max_requests.t
@@ -90,7 +90,7 @@
 is($frame->{headers}->{':status'}, 200, 'max requests limited');
 
 TODO: {
-local $TODO = 'not yet' if $^O eq 'linux' or $^O eq 'freebsd'
+local $TODO = 'not yet' if ($^O eq 'linux' or $^O eq 'freebsd')
 	and !$t->has_version('1.19.1');
 
 my @data = grep { $_->{type} eq "DATA" } @$frames;
@@ -128,7 +128,7 @@
 is($frame->{headers}->{':status'}, 200, 'graceful shutdown in idle');
 
 TODO: {
-local $TODO = 'not yet' if $^O eq 'linux' or $^O eq 'freebsd'
+local $TODO = 'not yet' if ($^O eq 'linux' or $^O eq 'freebsd')
 	and !$t->has_version('1.19.1');
 
 my @data = grep { $_->{type} eq "DATA" } @$frames;