Fix for mistake with const for non pointer/reference with corrections in documentation.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35797 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/pen.cpp

@@ -305,7 +305,7 @@ void wxPen::SetColour(const wxColour& col)
     RealizeResource();
 }
 
-void wxPen::SetColour(const unsigned char r, const unsigned char g, const unsigned char b)
+void wxPen::SetColour(unsigned char r, unsigned char g, unsigned char b)
 {
     Unshare();