gensdkshell: fix pep8
gensdkshell: fix pep8

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