delete the old log target if one had been created somehow even before DoCommonPreInit() was called

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39072 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/init.cpp

@@ -217,7 +217,7 @@ static bool DoCommonPreInit()
     // initialization simply disappear under Windows
     //
     // note that we will delete this log target below
-    wxLog::SetActiveTarget(new wxLogBuffer);
+    delete wxLog::SetActiveTarget(new wxLogBuffer);
 #endif // wxUSE_LOG
 
     return true;