[minor] display UTC timestamp in manifest search
[minor] display UTC timestamp in manifest search

Use a UTC timestamp here to be more consistent with other time output.

mozilla/mig,ameihm0912/mig,mozilla/mig,rezen/mig,rezen/mig,sunnygkp10/mig,jboyer2012/mig,sunnygkp10/mig,sunnygkp10/mig,rezen/mig,yvesago/mig,ameihm0912/mig,mozilla/mig,jboyer2012/mig,yvesago/mig,jboyer2012/mig,mozilla/mig,yvesago/mig,jboyer2012/mig,mozilla/mig,yvesago/mig,ameihm0912/mig,rezen/mig,sunnygkp10/mig