shell: add option to list links looking for newer files
shell: add option to list links looking for newer files

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