[gtk+] infobar: Update documentation

[Matthias Clasen <matthiasc src gnome org>]

commit 16bca98305486a4e75356276a33753efcfa344ed
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 23 14:14:32 2016 -0400

    infobar: Update documentation
    
    Remove explicit reference to color from the
    gtk_info_bar_set_message_type() docs.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=759037

 gtk/gtkinfobar.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkinfobar.c b/gtk/gtkinfobar.c
index 507fb0c..cc5a5b7 100644
--- a/gtk/gtkinfobar.c
+++ b/gtk/gtkinfobar.c
@@ -1118,8 +1118,8 @@ gtk_info_bar_buildable_custom_finished (GtkBuildable *buildable,
  * @message_type: a #GtkMessageType
  *
  * Sets the message type of the message area.
- * GTK+ uses this type to determine what color to use
- * when drawing the message area.
+ *
+ * GTK+ uses this type to determine how the message is displayed.
  *
  * Since: 2.18
  */