[mutter/gnome-3-16] backends/x11: Fix set_scroll_button

[Ondrej Holy <oholy src gnome org>]

commit c99da71e96513b65744bfa75e3bae71afe42f3a7
Author: Ondrej Holy <oholy redhat com>
Date:   Wed Apr 15 17:55:38 2015 +0200

    backends/x11: Fix set_scroll_button
    
    There is copy&pasted code in set_scroll_button, which is apparently
    wrong, because it is trying to set scroll method instead of the scroll
    button...
    
    https://bugzilla.gnome.org/show_bug.cgi?id=747967

 src/backends/x11/meta-input-settings-x11.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/backends/x11/meta-input-settings-x11.c b/src/backends/x11/meta-input-settings-x11.c
index b1060a9..d0a3440 100644
--- a/src/backends/x11/meta-input-settings-x11.c
+++ b/src/backends/x11/meta-input-settings-x11.c
@@ -180,7 +180,7 @@ meta_input_settings_x11_set_scroll_button (MetaInputSettings  *settings,
                                            ClutterInputDevice *device,
                                            guint               button)
 {
-  change_property (device, "libinput Scroll Method Enabled",
+  change_property (device, "libinput Button Scrolling Button",
                    XA_INTEGER, 32, &button, 1);
 }