Avoid a copy when constructing a log_message_t

1 files changed, 1 insertions, 1 deletions

diff --git a/src/Log.h b/src/Log.h
index 3a588f4..bf1d5e4 100644
--- a/src/Log.h
+++ b/src/Log.h
@@ -134,7 +134,7 @@ class LogTracer : public LogBackend {
 class LogLine;
 
 struct log_message_t {
-    log_message_t(log_level_t _level, std::string _message) :
+    log_message_t(log_level_t _level, const std::string& _message) :
         level(_level),
         message(_message) {}