[libgit2-glib] Fix return value for ggit_fetch_options_get_download_tags

[Ting-Wei Lan <lantw src gnome org>]

commit 260a506bed59b193e23f63b97d6a6ab0505a2d9d
Author: Ting-Wei Lan <lantw src gnome org>
Date:   Sat Aug 1 14:10:15 2015 +0800

    Fix return value for ggit_fetch_options_get_download_tags
    
    https://bugzilla.gnome.org/show_bug.cgi?id=753122

 libgit2-glib/ggit-fetch-options.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgit2-glib/ggit-fetch-options.c b/libgit2-glib/ggit-fetch-options.c
index 6abffeb..5fae1b2 100644
--- a/libgit2-glib/ggit-fetch-options.c
+++ b/libgit2-glib/ggit-fetch-options.c
@@ -171,7 +171,7 @@ ggit_fetch_options_set_remote_callbacks (GgitFetchOptions    *options,
 GgitRemoteDownloadTagsType
 ggit_fetch_options_get_download_tags (GgitFetchOptions *options)
 {
-       g_return_if_fail (options != NULL);
+       g_return_val_if_fail (options != NULL, GGIT_REMOTE_DOWNLOAD_TAGS_UNSPECIFIED);
        return (GgitRemoteDownloadTagsType)options->fetch_options.download_tags;
 }