Makefile: fix pep8 and coverage rules
Makefile: fix pep8 and coverage rules

ramaxlo/cerbero,jackjansen/cerbero,atsushieno/cerbero,ford-prefect/cerbero,shoreflyer/cerbero,jackjansen/cerbero-2013,atsushieno/cerbero,ramaxlo/cerbero,nirbheek/cerbero,nirbheek/cerbero-old,ikonst/cerbero,multipath-rtp/cerbero,ylatuya/cerbero,centricular/cerbero,nirbheek/cerbero-old,sdroege/cerbero,sdroege/cerbero,AlertMe/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,multipath-rtp/cerbero,GStreamer/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,ylatuya/cerbero,superdump/cerbero,flexVDI/cerbero,EricssonResearch/cerbero,lubosz/cerbero,davibe/cerbero,justinjoy/cerbero,OptoFidelity/cerbero,flexVDI/cerbero,centricular/cerbero,nzjrs/cerbero,superdump/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,BigBrother-International/gst-cerbero,nirbheek/cerbero,ford-prefect/cerbero,justinjoy/cerbero,shoreflyer/cerbero,nzjrs/cerbero,sdroege/cerbero,BigBrother-International/gst-cerbero,nirbheek/cerbero-old,ikonst/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,GStreamer/cerbero,davibe/cerbero,brion/cerbero,ikonst/cerbero,fluendo/cerbero,ylatuya/cerbero,lubosz/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,nirbheek/cerbero,superdump/cerbero,AlertMe/cerbero,cee1/cerbero-mac,brion/cerbero,jackjansen/cerbero-2013,ramaxlo/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,jackjansen/cerbero-2013,nicolewu/cerbero,jackjansen/cerbero-2013,EricssonResearch/cerbero,EricssonResearch/cerbero,davibe/cerbero,EricssonResearch/cerbero,atsushieno/cerbero,AlertMe/cerbero,OptoFidelity/cerbero,jackjansen/cerbero,flexVDI/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,ikonst/cerbero,GStreamer/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,nzjrs/cerbero,shoreflyer/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,centricular/cerbero,shoreflyer/cerbero,nicolewu/cerbero,fluendo/cerbero,jackjansen/cerbero,cee1/cerbero-mac,centricular/cerbero,nzjrs/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,EricssonResearch/cerbero,ramaxlo/cerbero,AlertMe/cerbero,BigBrother-International/gst-cerbero,fluendo/cerbero,ramaxlo/cerbero,ford-prefect/cerbero,nicolewu/cerbero,sdroege/cerbero,cee1/cerbero-mac,fluendo/cerbero,centricular/cerbero,jackjansen/cerbero,multipath-rtp/cerbero,shoreflyer/cerbero,lubosz/cerbero,atsushieno/cerbero,nirbheek/cerbero-old,BigBrother-International/gst-cerbero,flexVDI/cerbero,brion/cerbero,multipath-rtp/cerbero,ford-prefect/cerbero,jackjansen/cerbero-2013,nzjrs/cerbero,lubosz/cerbero,superdump/cerbero,atsushieno/cerbero,justinjoy/cerbero,multipath-rtp/cerbero,OptoFidelity/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,flexVDI/cerbero,GStreamer/cerbero,AlertMe/cerbero,brion/cerbero,OptoFidelity/cerbero,nirbheek/cerbero,fluendo/cerbero,justinjoy/cerbero,cee1/cerbero-mac,ylatuya/cerbero,davibe/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,sdroege/cerbero,BigBrother-International/gst-cerbero,ikonst/cerbero,brion/cerbero,GStreamer/cerbero