[dia] [cairo] comment on cairo_close_path() in _bezier()

[Hans Breuer <hans src gnome org>]

commit 91c23846eb47708f8095dfe97c7483976511481b
Author: Hans Breuer <hans breuer org>
Date:   Tue Oct 2 21:15:26 2012 +0200

    [cairo] comment on cairo_close_path() in _bezier()

 plug-ins/cairo/diacairo-renderer.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/plug-ins/cairo/diacairo-renderer.c b/plug-ins/cairo/diacairo-renderer.c
index 3e731f3..97f800f 100644
--- a/plug-ins/cairo/diacairo-renderer.c
+++ b/plug-ins/cairo/diacairo-renderer.c
@@ -721,6 +721,10 @@ _bezier(DiaRenderer *self,
     }
   }
 
+  /* The stroke would benefit by an explicit cairo_close_path() but we can not do it.
+   * At this point there is not enough information left, i.e. if it comes from a Beziergon
+   * and should be closed or if it was a Bezierline which happens to end in the start point.
+   */
   if (fill)
     cairo_fill (renderer->cr);
   else