Add '__' to start/end of hidden Octave-only graphics properties (bug #49205). * QtHandlesUtils.cc (computeFont): get_fontsize_points -> get___fontsize_points__. * gl-render.cc (opengl_renderer::set_font): fontsize_points -> __fontsize_points__. * gl2ps-print.cc (gl2ps_renderer::set_font): fontsize_points -> __fontsize_points__. * graphics.cc (axes::properties::init, axes::properties::set_xlabel, axes::properties::set_ylabel, axes::properties::set_zlabel, axes::properties::set_title, axes::properties::set_defaults, text::properties::update_text_extent, text::properties::request_autopos): autopos_tag -> __autopos_tag__. * graphics.cc (axes::properties::update_font, text::properties::get___fontsize_points__, uicontrol::properties::get___fontsize_points__, uibuttongroup::properties::get___fontsize_points__, uipanel::properties::get___fontsize_points__): fontsize_points -> __fontsize_points__. * graphics.in.h: fontsize_points -> __fontsize_points__. autopos_tag -> __autopos_tag__. fltk_label -> __fltk_label__. * __init_fltk__.cc: fltk_label -> __fltk_label__. * plotyy.m, hdl2struct.m, struct2hdl.m: autopos_tag -> __autopos_tag__.

--- a/libgui/graphics/QtHandlesUtils.cc	Fri Oct 14 06:59:29 2016 -0700
+++ b/libgui/graphics/QtHandlesUtils.cc	Fri Oct 14 14:46:25 2016 -0700
@@ -124,7 +124,7 @@
           mapsInitialized = true;
         }
 
-      f.setPointSizeF (props.get_fontsize_points (height));
+      f.setPointSizeF (props.get___fontsize_points__ (height));
       f.setWeight (weightMap[props.get_fontweight ()]);
       f.setStyle (angleMap[props.get_fontangle ()]);