Fix wxString.Print call to be compatible with wx2.8, thanks to Барановский...

Fix wxString.Print call to be compatible with wx2.8, thanks to Барановский Константин and Edwin van den Oetelaar for submiting same patch, same hour, are you twins? ;)

pcbnew/scripting/pcbnew_footprint_wizards.cpp

@@ -72,9 +72,9 @@ PyObject* PYTHON_FOOTPRINT_WIZARD::CallMethod( const char* aMethod, PyObject* aA
             message.Printf( wxT( "calling %s()\n"
                                  "Exception: %s\n"
                                  "         : %s\n" ),
-                            aMethod,
-                            FROM_UTF8( PyString_AsString( PyObject_Str( v ) ) ),
-                            FROM_UTF8( PyString_AsString( PyObject_Str( b ) ) )
+                            FROM_UTF8( aMethod ).c_str(),
+                            FROM_UTF8( PyString_AsString( PyObject_Str( v ) ) ).c_str(),
+                            FROM_UTF8( PyString_AsString( PyObject_Str( b ) ) ).c_str()
                             );
 
             wxMessageBox( message,