Fix the error logging of the promhttp handler by connecting it to the promlog setup. * Switch to go-kit/log. * Cleanup CHANGELOG. Fixes: https://github.com/prometheus/node_exporter/issues/1886 Signed-off-by: Ben Kochie <superq@gmail.com>
Signed-off-by: Wisniewski, Krzysztof2 <Krzysztof2.Wisniewski@intel.com>