[RFC] x86: Cleanup prose of Documentation/i386/IO-APIC.txt

[Nick Andrew <nick@nick-andrew.net>]

I'm doing a couple of cleanups to Documentation/i386/IO-APIC.txt
and I have a problem with this line, which is supposed to compute
a sample pirq= kernel parameter:

   echo -n pirq=; echo `scanpci | grep T_L | cut -c56-` | sed 's/ /,/g'

The 'scanpci' command used to be part of xutils and/or XFree86.
Xorg implements "Xorg -scanpci" but the output is different and it won't
run while X is running.

Firstly I propose using the $( ) construct rather than backticks, since
it is easier to read:

   echo -n pirq=; echo $( scanpci | grep T_L | cut -c56- ) | sed 's/ /,/g'

Inside the backtics, instead of scanpci, I could do:

   lspci -v | grep IRQ | sed -e 's/.* IRQ \(\w\+\)/\1/'

Is this an acceptable substitution?

Nick.
-- 
PGP Key ID = 0x418487E7                      http://www.nick-andrew.net/
PGP Key fingerprint = B3ED 6894 8E49 1770 C24A  67E3 6266 6EB9 4184 87E7