[glib/mcatanzaro/gdbus-error] gdbus: Improve error when well-known name is unowned

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 6f57a901d0268d3dcb520ddea7dcd461fed87485
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Wed Sep 12 11:07:45 2018 -0500

    gdbus: Improve error when well-known name is unowned
    
    We should indicate the name, so that we have some chance of debugging
    this problem.

 gio/gdbusproxy.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/gio/gdbusproxy.c b/gio/gdbusproxy.c
index ae7058371..7dd409166 100644
--- a/gio/gdbusproxy.c
+++ b/gio/gdbusproxy.c
@@ -2723,7 +2723,8 @@ g_dbus_proxy_call_internal (GDBusProxy          *proxy,
               g_task_return_new_error (task,
                                        G_IO_ERROR,
                                        G_IO_ERROR_FAILED,
-                                       _("Cannot invoke method; proxy is for a well-known name without an 
owner and proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag"));
+                                       _("Cannot invoke method; proxy is for a well-known name %s without an 
owner, and proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag"),
+                                       proxy->priv->name);
               g_object_unref (task);
             }
           G_UNLOCK (properties_lock);
@@ -2854,10 +2855,11 @@ g_dbus_proxy_call_sync_internal (GDBusProxy      *proxy,
       destination = g_strdup (get_destination_for_call (proxy));
       if (destination == NULL)
         {
-          g_set_error_literal (error,
-                               G_IO_ERROR,
-                               G_IO_ERROR_FAILED,
-                               _("Cannot invoke method; proxy is for a well-known name without an owner and 
proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag"));
+          g_set_error (error,
+                       G_IO_ERROR,
+                       G_IO_ERROR_FAILED,
+                       _("Cannot invoke method; proxy is for a well-known name %s without an owner, and 
proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag"),
+                       proxy->priv->name);
           ret = NULL;
           G_UNLOCK (properties_lock);
           goto out;