[gtk+/portal] Improve warning messages

[Matthias Clasen <matthiasc src gnome org>]

commit ce28ecf7d4bd7aa242b834800773f900fcc31d3b
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jul 6 20:05:33 2016 -0400

    Improve warning messages
    
    Refer to the D-Bus interface that we were actually calling out to.

 gtk/gtkapplication-dbus.c |   12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkapplication-dbus.c b/gtk/gtkapplication-dbus.c
index 4336ec5..a604074 100644
--- a/gtk/gtkapplication-dbus.c
+++ b/gtk/gtkapplication-dbus.c
@@ -508,7 +508,9 @@ gtk_application_impl_dbus_inhibit (GtkApplicationImpl         *impl,
         {
           if (!warned)
             {
-              g_warning ("Calling org.gnome.SessionManager.Inhibit failed: %s", error->message);
+              g_warning ("Calling %s.Inhibit failed: %s",
+                         g_dbus_proxy_get_interface_name (dbus->sm_proxy),
+                         error->message);
               warned = TRUE;
             }
           g_clear_error (&error);
@@ -549,7 +551,9 @@ gtk_application_impl_dbus_inhibit (GtkApplicationImpl         *impl,
         {
           if (!warned)
             {
-              g_warning ("Calling org.freedesktop.portal.Inhibit.Inhibit failed: %s", error->message);
+              g_warning ("Calling %s.Inhibit failed: %s",
+                         g_dbus_proxy_get_interface_name (dbus->inhibit_proxy),
+                         error->message);
               warned = TRUE;
             }
           g_clear_error (&error);
@@ -625,7 +629,9 @@ gtk_application_impl_dbus_is_inhibited (GtkApplicationImpl         *impl,
     {
       if (!warned)
         {
-          g_warning ("Calling IsInhibited failed: %s", error->message);
+          g_warning ("Calling %s.IsInhibited failed: %s",
+                     g_dbus_proxy_get_interface_name (dbus->sm_proxy),
+                     error->message);
           warned = TRUE;
         }
       g_error_free (error);