unit tests: fix uninitialized pointer

diff --git a/pdns/test-lua_auth4_cc.cc b/pdns/test-lua_auth4_cc.cc
index 3765459065fd1b18fc030330a4a693bf410919d3..9ac8e117f052276f575eab701b768d838bc235bb 100644 (file)
--- a/pdns/test-lua_auth4_cc.cc
+++ b/pdns/test-lua_auth4_cc.cc
@@ -30,7 +30,7 @@ BOOST_AUTO_TEST_CASE(test_prequery) {
   DNSPacket *p = new DNSPacket(true);
   p->qdomain = DNSName("mod.unit.test.");
   lua.loadString(script);
-  DNSPacket *r;
+  DNSPacket *r = nullptr;
   try {
     r = lua.prequery(p);
     BOOST_CHECK_EQUAL(r->qdomain.toString(), "mod.unit.test.");