let topClients() default to top-10

diff --git a/pdns/dnsdist-lua.cc b/pdns/dnsdist-lua.cc
index 4b482c2c7131c8f5ece9de72803b37c319b280fe..91983ee5c31b2a3db70ada03e2315a3d3d080766 100644 (file)
--- a/pdns/dnsdist-lua.cc
+++ b/pdns/dnsdist-lua.cc
@@ -658,7 +658,8 @@ vector<std::function<void(void)>> setupLua(bool client, const std::string& confi
     });
 
 
-  g_lua.writeFunction("topClients", [](unsigned int top) {
+  g_lua.writeFunction("topClients", [](boost::optional<unsigned int> top_) {
+      auto top = top_.get_value_or(10);
       map<ComboAddress, int,ComboAddress::addressOnlyLessThan > counts;
       unsigned int total=0;
       {