support old option names but mark as deprecated

This is in response to a comment left on a35e7ea. Backwards compatibility
is a good idea for at least a release.

1 files changed, 1 insertions, 0 deletions

diff --git a/vis.h b/vis.h
index b4dce44..e0f6739 100644
--- a/vis.h
+++ b/vis.h
@@ -857,6 +857,7 @@ enum VisOption {
 	VIS_OPTION_TYPE_NUMBER = 1 << 2,
 	VIS_OPTION_VALUE_OPTIONAL = 1 << 3,
 	VIS_OPTION_NEED_WINDOW = 1 << 4,
+	VIS_OPTION_DEPRECATED = 1 << 5,
 };
 
 /**