[libgit2-glib] ggit-branch-enumerator.c: Fix return annotations

[Igor Gnatenko <ignatenko src gnome org>]

commit f5b223a5969826772c5db3a24dc6962c4c579f48
Author: Brian C. Lane <bcl redhat com>
Date:   Wed Aug 30 11:21:00 2017 -0700

    ggit-branch-enumerator.c: Fix return annotations
    
    Add (nullable) where needed.

 libgit2-glib/ggit-branch-enumerator.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/libgit2-glib/ggit-branch-enumerator.c b/libgit2-glib/ggit-branch-enumerator.c
index 0df57dd..1b87dc0 100644
--- a/libgit2-glib/ggit-branch-enumerator.c
+++ b/libgit2-glib/ggit-branch-enumerator.c
@@ -27,7 +27,7 @@ _ggit_branch_enumerator_wrap (git_branch_iterator *iter)
  * ggit_branch_enumerator_ref:
  * @enumerator: a #GgitBranchEnumerator.
  *
- * Returns: (transfer full): @enumerator
+ * Returns: (transfer full) (nullable): @enumerator or %NULL
  */
 GgitBranchEnumerator *
 ggit_branch_enumerator_ref (GgitBranchEnumerator *enumerator)
@@ -58,7 +58,7 @@ ggit_branch_enumerator_unref (GgitBranchEnumerator *enumerator)
  *
  * Get an iterator for the enumerator.
  *
- * Returns: (transfer none): a #GgitBranchEnumerator.
+ * Returns: (transfer none) (nullable): a #GgitBranchEnumerator or %NULL.
  *
  **/
 GgitBranchEnumerator *
@@ -112,7 +112,7 @@ ggit_branch_enumerator_next (GgitBranchEnumerator *enumerator)
  * returned GgitRef will be of type GgitBranch if the ref represents a local
  * branch.
  *
- * Returns: (transfer full): the branch ref.
+ * Returns: (transfer full) (nullable): the branch ref or %NULL.
  */
 GgitRef *
 ggit_branch_enumerator_get (GgitBranchEnumerator *enumerator)