dnsdist: Fix a buffer overflow when displaying an OpcodeRule

Thanks clang for the warning!

diff --git a/pdns/dnsrulactions.hh b/pdns/dnsrulactions.hh
index 9d47c4dd52720f51d9e77baf6054cd0205873761..3df610b9389e2978da8b5a8ba378b44a06cc601a 100644 (file)
--- a/pdns/dnsrulactions.hh
+++ b/pdns/dnsrulactions.hh
@@ -323,7 +323,7 @@ public:
   }
   string toString() const override
   {
-    return "opcode=="+d_opcode;
+    return "opcode=="+std::to_string(d_opcode);
   }
 private:
   uint8_t d_opcode;