Do the same thing with vendors as I did with trainers. This won't work if you have a repo copy however.

diff --git a/Scanner.lua b/Scanner.lua
index a575ada..062df38 100644
--- a/Scanner.lua
+++ b/Scanner.lua
@@ -1148,6 +1148,7 @@ do

 		table.wipe(output)

+		tinsert(output, "ARL Version: @project-version@")
 		tinsert(output, "Vendor Name: "..targetname.." NPC ID: "..targetID)
 		-- Parse all the items on the merchant
 		for i = 1, GetMerchantNumItems(), 1 do