[mutter] input-settings/x11: Fix tap-and-drag libinput property name

[Jonas Ådahl <jadahl src gnome org>]

commit 01e27a43667d4c47c7c0bfba4dcb6264389ef08c
Author: Jonas Ådahl <jadahl gmail com>
Date:   Wed Jan 10 11:53:31 2018 +0800

    input-settings/x11: Fix tap-and-drag libinput property name
    
    It's "libinput Tapping Drag Enabled", not "libinput TappingDrag
    Enabled".
    
    https://bugzilla.gnome.org/show_bug.cgi?id=775755

 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 98d05a9..d1ee37a 100644
--- a/src/backends/x11/meta-input-settings-x11.c
+++ b/src/backends/x11/meta-input-settings-x11.c
@@ -239,7 +239,7 @@ meta_input_settings_x11_set_tap_and_drag_enabled (MetaInputSettings  *settings,
 {
   guchar value = (enabled) ? 1 : 0;
 
-  change_property (device, "libinput TappingDrag Enabled",
+  change_property (device, "libinput Tapping Drag Enabled",
                    XA_INTEGER, 8, &value, 1);
 }