[luatex] \showtokens oddities

[Joseph Wright]

Hello all,

Testing a small example

    \def\foo#1{\showtokens{#1}}
    \foo{bar}

I find odd output with LuaTeX:

    > bar.
    \foo #1^^@-\showtokens {#1}

(TL2014 pretest) while pdfTeX/XeTeX give the more reasonable

    > bar.
    \foo #1->\showtokens {#1}

I'm guessing this is not deliberate: know issue?
-- 
Joseph Wright