[glib] gpermission: fix async error returns

[Dan Winship <danw src gnome org>]

commit 656494a7840cfb6c53c2cb9a27d82f58e2dd6f40
Author: Dan Winship <danw gnome org>
Date:   Wed Aug 19 15:45:11 2015 -0400

    gpermission: fix async error returns
    
    a8eedd00 broke the error return values from
    g_permission_acquire/release_async() on GSimplePermission. Fix that.

 gio/gpermission.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/gio/gpermission.c b/gio/gpermission.c
index ee5fc0c..6f3f2c2 100644
--- a/gio/gpermission.c
+++ b/gio/gpermission.c
@@ -418,8 +418,7 @@ acquire_or_release_finish (GPermission   *permission,
                            GAsyncResult  *result,
                            GError       **error)
 {
-  g_async_result_legacy_propagate_error (result, error);
-  return FALSE;
+  return g_task_propagate_boolean (G_TASK (result), error);
 }
 
 static void