[gtk+] Frame: Explain the .flat style class

[Daniel Boles <dboles src gnome org>]

commit b953710fd714265a3459e869bf2377338103b294
Author: Daniel Boles <dboles src gnome org>
Date:   Sun Feb 19 17:17:58 2017 +0000

    Frame: Explain the .flat style class

 gtk/gtkframe.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkframe.c b/gtk/gtkframe.c
index 85f61f8..3b3ba30 100644
--- a/gtk/gtkframe.c
+++ b/gtk/gtkframe.c
@@ -78,8 +78,8 @@
  * ╰── <child>
  * ]|
  *
- * GtkFrame has a main CSS node with name frame.
- * The style class .flat can appear with the main node.
+ * GtkFrame has a main CSS node with name frame. This node can be given the
+ * style class .flat, which disables drawing of the border.
  */
 
 struct _GtkFramePrivate