common: Add missing va_end (#11529)

The va_copy man page states that va_end must be called to revert
whatever the copy did. For some implementaions, not calling va_end
has no consequences. For others it could leak memory.

diff --git a/common/log.cpp b/common/log.cpp
index 04c7c0ed10595e35eecd79f66d43e21990bde6c4..0b8994ae1c520e414467592b7886b9bb2ffc665d 100644 (file)
--- a/common/log.cpp
+++ b/common/log.cpp
@@ -206,6 +206,7 @@ public:
                 vsnprintf(entry.msg.data(), entry.msg.size(), ss.str().c_str(), args_copy);
             }
 #endif
+            va_end(args_copy);
         }
 
         entry.level = level;