Code review comment for lp:~psusi/landscape-client/correct-free-mem

+1, this makes landscape-sysinfo report more accurate memory usage.

Without the change:
jseutter@perth:~/src/landscape-client/trunk$ ./scripts/landscape-sysinfo
  System load: 0.82 Users logged in: 1
  Usage of /: 58.1% of 228.21GB IP address for eth0: 192.168.2.138
  Memory usage: 42% IP address for lxcbr0: 10.0.3.1
  Swap usage: 0% IP address for wlan0: 192.168.2.100
  Processes: 238

With the change:
jseutter@perth:~/src/landscape-client/correct-free-mem$ ./scripts/landscape-sysinfo
  System load: 0.92 Users logged in: 1
  Usage of /: 58.1% of 228.21GB IP address for eth0: 192.168.2.138
  Memory usage: 22% IP address for lxcbr0: 10.0.3.1
  Swap usage: 0% IP address for wlan0: 192.168.2.100
  Processes: 238

This matches the output of top, free and The Internet. It differs from the free command by 1%, but I assume this is because we truncate the value somewhere.

I'm getting two PEP8 warnings, can you clean these up?
=== pep8 ===

landscape/lib/sysstats.py:16:80: E501 line too long (96 characters)
landscape/lib/sysstats.py:20:80: E501 line too long (87 characters)