auth: Use [[maybe_unused]] in the distributor unit tests

As suggested by Otto.

(cherry picked from commit 9525b32a1350f10441b6921f64151f1d9156ab52)

diff --git a/pdns/test-distributor_hh.cc b/pdns/test-distributor_hh.cc
index 57337cd4311d09ba5d92ad58f7ba5c11c43d9a3f..4fe4f3e68bff22a46122551f3086a84dc9f985c0 100644 (file)
--- a/pdns/test-distributor_hh.cc
+++ b/pdns/test-distributor_hh.cc
@@ -65,9 +65,8 @@ BOOST_AUTO_TEST_CASE(test_distributor_basic) {
 
 struct BackendSlow
 {
-  std::unique_ptr<DNSPacket> question(Question& query)
+  std::unique_ptr<DNSPacket> question([[maybe_unused]] Question& query)
   {
-    (void)query;
     if (d_shouldSleep) {
       /* only sleep once per distributor thread, otherwise
          we are sometimes destroyed before picking up the queued