ipc whitespace cleanups

[Manfred Spraul]

This is a multi-part message in MIME format.Hi Rafael,

Is anything else in your IPC todo list?
For me, it seems as if the locking updates have finally stabilized, no 
more wrong return codes, races and whatever else.
(/me knocks on wood).

Therefore I would like to send the attached patch to Andrew (perhaps 
with a rediff, if required) - unless it collides with something you plan.

--
    Manfred