[NetworkManager-pptp] Move D-Bus policy file to /usr/share/dbus-1/system.d/

[Thomas Haller <thaller src gnome org>]

commit c8fccd0bc9c7ba366a23cf4146e75b7794922284
Author: Michael Biebl <biebl debian org>
Date:   Tue Nov 27 14:41:17 2018 +0100

    Move D-Bus policy file to /usr/share/dbus-1/system.d/
    
    To better support stateless systems with an empty /etc, the old location
    in /etc/dbus-1/system.d/ should only be used for local admin changes.
    Package provided D-Bus policy files are supposed to be installed in
    /usr/share/dbus-1/system.d/.
    
    This is supported since dbus 1.9.18 ([1]).
    
    [1] https://lists.freedesktop.org/archives/dbus/2015-July/016746.html
    
    https://gitlab.gnome.org/GNOME/NetworkManager-pptp/-/merge_requests/6

 Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/Makefile.am b/Makefile.am
index 1664304..23bcb00 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -20,7 +20,7 @@ SUBDIRS = \
 plugindir = $(libdir)/NetworkManager
 plugin_LTLIBRARIES =
 
-dbusservicedir = $(sysconfdir)/dbus-1/system.d
+dbusservicedir = $(datadir)/dbus-1/system.d
 dbusservice_DATA = nm-pptp-service.conf
 
 nmvpnservicedir = $(NM_VPN_SERVICE_DIR)