shell: fix touch command with files that don't exists
shell: fix touch command with files that don't exists

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