fix, PEBKAC, for the spsv pool speak number of elements, not octets

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, in prop --sample mode output flow characters so the input can be fed to the next layer

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'cmd/rbm-prop'

* cmd/rbm-prop:
  minor, in prop --sample mode output flow characters so the input can be fed to the next layer
  fix, PEBKAC, for the spsv pool speak number of elements, not octets