The crude loop I wrote to come up with this changeset:

  find -L package/feeds/packages/ -name patches | \
  sed 's/patches$/refresh/' | sort | xargs make

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>

Uses C++11's sleep_for, which internally uses nanosleep.

Signed-off-by: Rosen Penev <rosenp@gmail.com>