[libgit2-glib] ggit-proxy-options.c: Fix return annotations

[Igor Gnatenko <ignatenko src gnome org>]

commit 2c48405b0b29970fadd4352c94a88222dd7088e6
Author: Brian C. Lane <bcl redhat com>
Date:   Wed Aug 30 17:16:17 2017 -0700

    ggit-proxy-options.c: Fix return annotations
    
    Add (nullable) as needed.

 libgit2-glib/ggit-proxy-options.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgit2-glib/ggit-proxy-options.c b/libgit2-glib/ggit-proxy-options.c
index 233517b..aa5be08 100644
--- a/libgit2-glib/ggit-proxy-options.c
+++ b/libgit2-glib/ggit-proxy-options.c
@@ -90,7 +90,7 @@ ggit_proxy_options_init (GgitProxyOptions *options)
  *
  * Create a new proxy options object.
  *
- * Returns: a #GgitProxyOptions.
+ * Returns: (transfer full) (nullable): a #GgitProxyOptions.
  *
  **/
 GgitProxyOptions *