patch 9.1.1232: Vim script is missing the tuple data type

Problem:  Vim script is missing the tuple data type
Solution: Add support for the tuple data type
          (Yegappan Lakshmanan)

closes: #16776

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/proto.h b/src/proto.h
index 091e093..f04ba05 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -207,6 +207,7 @@
 # include "textobject.pro"
 # include "textformat.pro"
 # include "time.pro"
+# include "tuple.pro"
 # include "typval.pro"
 # include "ui.pro"
 # include "undo.pro"