Cleanup: pass EqualityOptions as const&

This exposes a useless assignment of export_differing_subtitles,
which I've removed (and altered the comment accordingly).

1 files changed, 1 insertions, 1 deletions

diff --git a/src/cpl.h b/src/cpl.h
index 64d08ae9..2a2fc827 100644
--- a/src/cpl.h
+++ b/src/cpl.h
@@ -88,7 +88,7 @@ public:
 
 	bool equals (
 		std::shared_ptr<const Asset> other,
-		EqualityOptions options,
+		EqualityOptions const& options,
 		NoteHandler note
 		) const override;