man: Stop printing build noise to stderr
man: Stop printing build noise to stderr

This patch stops docbook from printing the name of each built manpage,
including stubs, to stderr.

Signed-off-by: Chad Versace <a557f7f75bf28dc19ac99107f5cc7cd6b3fbdb1a@linux.intel.com>

dcbaker/waffle,yinquan529/waffle-gl-waffle,maurossi/waffle,chadversary/waffle,chadversary/waffle,janesma/waffle,fjhenigman/waffle,janesma/waffle,dcbaker/waffle,dcbaker/waffle,janesma/waffle,waffle-gl/waffle,maurossi/waffle,evelikov/waffle,waffle-gl/waffle,maurossi/waffle,waffle-gl/waffle,yinquan529/waffle-gl-waffle,chadversary/waffle,evelikov/waffle,fjhenigman/waffle,evelikov/waffle,fjhenigman/waffle,waffle-gl/waffle,yinquan529/waffle-gl-waffle