[ostree] Update libgsystem

[Jasper St. Pierre <jstpierre src gnome org>]

commit 3b31f2b4d1bd9b1e41a39388675e598001fe6d3a
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Wed Oct 9 16:17:35 2013 -0400

    Update libgsystem

 src/libgsystem              |    2 +-
 src/libostree/ostree-core.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/libgsystem b/src/libgsystem
index 020fa7d..4d74152 160000
--- a/src/libgsystem
+++ b/src/libgsystem
@@ -1 +1 @@
-Subproject commit 020fa7de344d9f10136ae1a3cb9bf6baa868218d
+Subproject commit 4d7415264738f03e4e72600b24883adc93d7307a
diff --git a/src/libostree/ostree-core.c b/src/libostree/ostree-core.c
index 1c87009..bc796bb 100644
--- a/src/libostree/ostree-core.c
+++ b/src/libostree/ostree-core.c
@@ -1150,7 +1150,7 @@ _ostree_make_temporary_symlink_at (int             tmp_dirfd,
   for (i = 0; i < max_attempts; i++)
     {
       g_free (tmpname);
-      tmpname = gsystem_fileutil_gen_tmp_name (NULL, NULL);
+      tmpname = gs_fileutil_gen_tmp_name (NULL, NULL);
       if (symlinkat (target, tmp_dirfd, tmpname) < 0)
         {
           if (errno == EEXIST)