[libgit2-glib] Properly initialize git2 diff options struct

[Jesse van den Kieboom <jessevdk src gnome org>]

commit a68f66f0d892e27125c9a1d72ccd67f22d6c72db
Author: Jesse van den Kieboom <jessevdk gmail com>
Date:   Wed Jul 3 13:59:52 2013 +0200

    Properly initialize git2 diff options struct

 libgit2-glib/ggit-diff-options.c |   17 +++++++++--------
 1 files changed, 9 insertions(+), 8 deletions(-)
---
diff --git a/libgit2-glib/ggit-diff-options.c b/libgit2-glib/ggit-diff-options.c
index b1ff684..a3b1ac0 100644
--- a/libgit2-glib/ggit-diff-options.c
+++ b/libgit2-glib/ggit-diff-options.c
@@ -121,19 +121,20 @@ ggit_diff_options_new (GgitDiffOption  flags,
                        const gchar   **pathspec)
 {
        GgitDiffOptions *diff_options;
-       git_diff_options *gdiff_options;
+       git_diff_options gdiff_options = GIT_DIFF_OPTIONS_INIT;
 
        diff_options = g_slice_new (GgitDiffOptions);
-       gdiff_options = &diff_options->diff_options;
 
-       gdiff_options->flags = flags;
-       gdiff_options->context_lines = n_context_lines;
-       gdiff_options->interhunk_lines = n_interhunk_lines;
-       gdiff_options->old_prefix = old_prefix == NULL ? NULL : g_strdup (old_prefix);
-       gdiff_options->new_prefix = new_prefix == NULL ? NULL : g_strdup (new_prefix);
+       gdiff_options.flags = flags;
+       gdiff_options.context_lines = n_context_lines;
+       gdiff_options.interhunk_lines = n_interhunk_lines;
+       gdiff_options.old_prefix = old_prefix == NULL ? NULL : g_strdup (old_prefix);
+       gdiff_options.new_prefix = new_prefix == NULL ? NULL : g_strdup (new_prefix);
+
        ggit_utils_get_git_strarray_from_str_array (pathspec,
-                                                   &gdiff_options->pathspec);
+                                                   &gdiff_options.pathspec);
 
+       diff_options->diff_options = gdiff_options;
        return diff_options;
 }