stdout for default waf output

[tridge at samba.org]

 > as the waf build currently outputs all the default "Checking for ..." messages
 > to stderr the error output in the buildfarm is "spammed" a bit :-). Can we get
 > that changed to be directed to stdout instead of stderr?

probably :-)

remind me when I get back. I'm currently well north of the arctic
circle in a little town called Övre Soppero. I'm thinking more about
moose than about build systems :-)

Cheers, Tridge