Added missing wx/log.h header.

This fixes compilation without PCH.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61690 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/unix/fdiounix.cpp

@@ -24,6 +24,7 @@
 #endif
 
 #include "wx/apptrait.h"
+#include "wx/log.h"
 #include "wx/private/fdiodispatcher.h"
 #include "wx/unix/private/fdiounix.h"