[gitg] Add support for creating binary patch

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

commit 977cad55764d832c91a7e74ba63bf0f3cffb3058
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Sat Aug 8 11:31:50 2015 +0200

    Add support for creating binary patch
    
    https://bugzilla.gnome.org/show_bug.cgi?id=719531

 gitg/gitg-commit-action-create-patch.vala |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gitg/gitg-commit-action-create-patch.vala b/gitg/gitg-commit-action-create-patch.vala
index bf3a789..93f4786 100644
--- a/gitg/gitg-commit-action-create-patch.vala
+++ b/gitg/gitg-commit-action-create-patch.vala
@@ -107,6 +107,8 @@ class CommitActionCreatePatch : GitgExt.UIElement, GitgExt.Action, GitgExt.Commi
                opts.n_context_lines = nc;
                opts.n_interhunk_lines = nc;
 
+               opts.flags |= Ggit.DiffOption.SHOW_BINARY;
+
                return commit.get_diff(opts, 0);
        }