90http3-graceful-shutdown.t: Simplify variable declaration
@@ -97,8 +97,7 @@ EOT
}
# wait until bpftrace and the trace log becomes ready
-my $read_trace;
-$read_trace = get_tracer($tracer_pid, "$tempdir/trace.out");
+my $read_trace = get_tracer($tracer_pid, "$tempdir/trace.out");
if ($^O eq 'linux') {
while ($read_trace->() eq '') {
sleep 1;
