Avoid ctor inheritance to make diagnostics better

Using constructor inheritance DRYs the code, but unfortunately confuses
GCC as to where the proper "required from here" location is, which makes
debugging formatting errors very difficult.  Avoid it (and update
oxen-logging to avoid it there as well).

external/oxen-logging

@@ -1 +1 @@
-Subproject commit 0fc1b3528a52475c4007d734a7861faa2212fe75
+Subproject commit 9d65a01ca73a944cd22e3a2966da2eaa76296456

llarp/util/logging.hpp

@@ -42,47 +42,72 @@ namespace llarp
       return std::string_view{
           concat_args_fmt_impl<std::make_index_sequence<2 * N>>::format.data(), 2 * N};
     }
-
-    template <log::Level level, typename... T>
-    struct LegacyLeveledLogger : log::detail::LeveledLogger<level, T...>
-    {
-      LegacyLeveledLogger(
-          T&&... args, const slns::source_location& location = slns::source_location::current())
-          : log::detail::LeveledLogger<level, T...>::LeveledLogger{
-              legacy_logger, concat_args_fmt<sizeof...(T)>(), std::forward<T>(args)..., location}
-      {}
-    };
   }  // namespace log_detail
 
   template <typename... T>
-  struct LOKINET_LOG_DEPRECATED(Trace) LogTrace
-      : log_detail::LegacyLeveledLogger<log::Level::trace, T...>
+  struct LOKINET_LOG_DEPRECATED(Trace) LogTrace : log::trace<T...>
   {
-    using log_detail::LegacyLeveledLogger<log::Level::trace, T...>::LegacyLeveledLogger;
+    LogTrace(
+        T&&... args,
+        const log::slns::source_location& location = log::slns::source_location::current())
+        : log::trace<T...>::trace{
+            log_detail::legacy_logger,
+            log_detail::concat_args_fmt<sizeof...(T)>(),
+            std::forward<T>(args)...,
+            location}
+    {}
   };
   template <typename... T>
-  struct LOKINET_LOG_DEPRECATED(Debug) LogDebug
-      : log_detail::LegacyLeveledLogger<log::Level::debug, T...>
+  struct LOKINET_LOG_DEPRECATED(Debug) LogDebug : log::debug<T...>
   {
-    using log_detail::LegacyLeveledLogger<log::Level::debug, T...>::LegacyLeveledLogger;
+    LogDebug(
+        T&&... args,
+        const log::slns::source_location& location = log::slns::source_location::current())
+        : log::debug<T...>::debug{
+            log_detail::legacy_logger,
+            log_detail::concat_args_fmt<sizeof...(T)>(),
+            std::forward<T>(args)...,
+            location}
+    {}
   };
   template <typename... T>
-  struct LOKINET_LOG_DEPRECATED(Info) LogInfo
-      : log_detail::LegacyLeveledLogger<log::Level::info, T...>
+  struct LOKINET_LOG_DEPRECATED(Info) LogInfo : log::info<T...>
   {
-    using log_detail::LegacyLeveledLogger<log::Level::info, T...>::LegacyLeveledLogger;
+    LogInfo(
+        T&&... args,
+        const log::slns::source_location& location = log::slns::source_location::current())
+        : log::info<T...>::info{
+            log_detail::legacy_logger,
+            log_detail::concat_args_fmt<sizeof...(T)>(),
+            std::forward<T>(args)...,
+            location}
+    {}
   };
   template <typename... T>
-  struct LOKINET_LOG_DEPRECATED(Warning) LogWarn
-      : log_detail::LegacyLeveledLogger<log::Level::warn, T...>
+  struct LOKINET_LOG_DEPRECATED(Warning) LogWarn : log::warning<T...>
   {
-    using log_detail::LegacyLeveledLogger<log::Level::warn, T...>::LegacyLeveledLogger;
+    LogWarn(
+        T&&... args,
+        const log::slns::source_location& location = log::slns::source_location::current())
+        : log::warning<T...>::warning{
+            log_detail::legacy_logger,
+            log_detail::concat_args_fmt<sizeof...(T)>(),
+            std::forward<T>(args)...,
+            location}
+    {}
   };
   template <typename... T>
-  struct LOKINET_LOG_DEPRECATED(Error) LogError
-      : log_detail::LegacyLeveledLogger<log::Level::err, T...>
+  struct LOKINET_LOG_DEPRECATED(Error) LogError : log::error<T...>
   {
-    using log_detail::LegacyLeveledLogger<log::Level::err, T...>::LegacyLeveledLogger;
+    LogError(
+        T&&... args,
+        const log::slns::source_location& location = log::slns::source_location::current())
+        : log::error<T...>::error{
+            log_detail::legacy_logger,
+            log_detail::concat_args_fmt<sizeof...(T)>(),
+            std::forward<T>(args)...,
+            location}
+    {}
   };
 
   template <typename... T>