app/vlogscli: fallback to stdout when less isn't available#1540
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Fallback to stdout instead of failing with
cannot find 'less' commandwhenlessisn't in$PATH(e.g. inside the distroless image), since vlogscli pipes interactive output toless.Remove the sync()
stdoutin this edge case asos.Stdoutis unbuffered, soio.Copyhas already written all the data.Update #1494