Lua RC interface: Fix info command

s/input_info/input.info/

share/lua/intf/rc.lua

@@ -308,7 +308,7 @@ function help(name,client,arg)
 end
 
 function input_info(name,client)
-    local categories = vlc.input_info()
+    local categories = vlc.input.info()
     for cat, infos in pairs(categories) do
         client:append("+----[ "..cat.." ]")
         client:append("|")