[gtk+/gtk-2-24] Mention gvfs in the gtk_show_uri() docs

[Matthias Clasen <matthiasc src gnome org>]

commit b9c9919fe22dd243b3771c6b59d7e751e556753b
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jan 6 13:00:07 2011 -0500

    Mention gvfs in the gtk_show_uri() docs
    
    https://bugzilla.gnome.org/show_bug.cgi?id=622125

 gtk/gtkshow.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkshow.c b/gtk/gtkshow.c
index b2b5691..642584b 100644
--- a/gtk/gtkshow.c
+++ b/gtk/gtkshow.c
@@ -37,8 +37,10 @@
  * @error: a #GError that is returned in case of errors
  *
  * This is a convenience function for launching the default application
- * to show the uri. The uri must be of a form understood by GIO. Typical
- * examples are
+ * to show the uri. The uri must be of a form understood by GIO (i.e. you
+ * need to install gvfs to get support for uri schemes such as http://
+ * or ftp://, as only local files are handled by GIO itself).
+ * Typical examples are
  * <simplelist>
  *   <member><filename>file:///home/gnome/pict.jpg</filename></member>
  *   <member><filename>http://www.gnome.org</filename></member>