PAX: Don't use pax_elf on 32bit systems
PAX Gut the pax_elf function. The section headers are at the end of the file and aren't even loaded in memory at the point this function is called.

style fixes by Oliver
PAX: PoC phase 1 - add paxctl-like functionality to mac_bsdextended(4)/ugidfw(8)
PAX ASLR: Clean up debugging code and remove unneeded comments.
PAX: style(9) after Shawn's fixes

Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>