log cleanup (#969)

- Improvement: New `ZEN_SCOPED_LOG(Expr)` macro routes `ZEN_INFO`/`ZEN_WARN`/`ZEN_DEBUG` in the enclosing block through the given logger expression instead of the default
- Improvement: `BuildContainer`, `SaveOplog`, and `LoadOplogContext` now take a caller-provided `LoggerRef` so diagnostic messages route through the caller's logger

1 files changed, 1 insertions, 1 deletions

diff --git a/src/zenhttp/clients/asynchttpclient.cpp b/src/zenhttp/clients/asynchttpclient.cpp
index 4b189af36..ea88fc783 100644
--- a/src/zenhttp/clients/asynchttpclient.cpp
+++ b/src/zenhttp/clients/asynchttpclient.cpp
@@ -599,7 +599,7 @@ struct AsyncHttpClient::Impl
 			}
 			catch (const std::exception& Ex)
 			{
-				auto Log = [&]() -> LoggerRef { return LogRef; };
+				ZEN_SCOPED_LOG(LogRef);
 				ZEN_ERROR("AsyncHttpClient: unhandled exception in completion callback: {}", Ex.what());
 			}
 		});