Initial cleanup patch : acpi.c

[Richard Hughes]

Simple patch attached.

* Cleans up trailing tabs and spaces.
* Adds the omitted battery.reporting.last_full from the coldplug
routine. This only affects people that query the key before the function
battery_poll_infrequently is called (which is called every hour, or
whenever the user plugs in/out the ac_adapter).
* Indents some of the larger lines so that they fit on my iBook screen.

Okay to commit?

Richard.