The verb-padding change dropped the leading space in durationSegment on
the assumption that the verb's trailing pad always supplies the gap. But
the unicode spinner style sets showVerb=false, making verbSegment an
empty string — in that mode the output would become `{frame}· {duration}`
with no separator. Add the space back; harmless when the verb segment
is shown (its trailing pad still provides the gap).
a0556b861f