[dia] metapost: comment regarding hole rendering

[Hans Breuer <hans src gnome org>]

commit 77e2ac8efc7ae6e3f2c6b66a4e4b5b1be1e32685
Author: Hans Breuer <hans breuer org>
Date:   Sun Sep 14 20:37:36 2014 +0200

    metapost: comment regarding hole rendering

 plug-ins/metapost/render_metapost.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/plug-ins/metapost/render_metapost.c b/plug-ins/metapost/render_metapost.c
index 7bce162..d74b83a 100644
--- a/plug-ins/metapost/render_metapost.c
+++ b/plug-ins/metapost/render_metapost.c
@@ -204,12 +204,16 @@ end_render(DiaRenderer *self)
 }
 
 /*!
- * \brief Advertize special capabilities
+ * \brief Advertise special capabilities
  *
- * Some objects drawing adapts to capabilities advertized by the respective
+ * Some objects drawing adapts to capabilities advertised by the respective
  * renderer. Usually there is a fallback, but generally the real thing should
  * be better.
  *
+ * Holes tested with http://www.tlhiv.org/mppreview/ and render-test as well as
+ * convert-to-path: apparently Metapost is not capable to render holes or
+ * draw_beziergon is doing something wrong.
+ *
  * \memberof _MetapostRenderer
  */
 static gboolean 
@@ -951,6 +955,7 @@ draw_image(DiaRenderer *self,
 /* GObject stuff */
 static void metapost_renderer_class_init (MetapostRendererClass *klass);
 
+
 static gpointer parent_class = NULL;
 
 GType