bug in ceillog2 macro (Lua-5.1.4)

[Wim Couwenberg <wim.couwenberg@...>]

> I propose following "patch", problem solved :-)

There seem to be an awful lot of pseudo-problems on the list lately.
Funny thing is that they don't seem to bother me one bit in my daily
Lua work, which after ten years is still pure bliss.  But that is
probably just me being ignorant.

Bye,
Wim