* Fixed the default format

include/cpplogging/manager/consumer/consumer.inl

@@ -13,7 +13,7 @@ namespace cpplogging
         static const std::string value(
             "[${runtime:-016.6f}] "
             "${level:5S} "
-            "${sender_type}(0x${sender:016x})@0x${thread:016x} "
+            "${sender_type}(0x${sender:-016x})@0x${thread:-016x} "
             "${filename:-25}:${line:5d}$n"
             "${message}");
         return value;