fix from Ron for one-shot timers

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3777 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/timer.cpp

@@ -86,7 +86,7 @@ static gint timeout_callback( gpointer data )
 #endif
 
     if (timer->OneShot())
-        timer->Stop();
+        return FALSE;
 
     return TRUE;
 }

src/gtk1/timer.cpp

@@ -86,7 +86,7 @@ static gint timeout_callback( gpointer data )
 #endif
 
     if (timer->OneShot())
-        timer->Stop();
+        return FALSE;
 
     return TRUE;
 }