[gtk+] Clarify docs of GtkTextTag -set properties a bit

[Matthias Clasen <matthiasc src gnome org>]

commit 9bb25c7f95434b65d84d048b8035d58e76ae99b9
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Feb 3 17:22:48 2013 -0500

    Clarify docs of GtkTextTag -set properties a bit
    
    https://bugzilla.gnome.org/show_bug.cgi?id=687825

 gtk/gtktexttag.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtktexttag.c b/gtk/gtktexttag.c
index 6910517..8674e92 100644
--- a/gtk/gtktexttag.c
+++ b/gtk/gtktexttag.c
@@ -65,7 +65,7 @@
  * For each property of #GtkTextTag, there is a "set" property, e.g.
  * "font-set" corresponds to "font". These "set" properties reflect
  * whether a property has been set or not.
- * You should not set them independently.
+ * They are maintained by GTK+ and you should not set them independently.
  */
 
 #include "config.h"