Ottava horizontal shit

[Shane Brandes]

Hello all,

   This is another perplexing thing. I am trying to figure out how to
shift the ottava indications directly over their corresponding chords.
There does not seem to be an obvious solution. So here is the miminmal
example. The end result should have 8va loco. 8va. loco. read in a
single line.

regards
Shane

version "2.13.0"
\relative{
  \once \override Staff.OttavaBracket #'dash-period = #0  \ottava #1
\barNumberCheck #190 \autoBeamOff
    <c' f c'>8  \ottava #0 <c, f c'>8 ^"loco." \once \override
Staff.OttavaBracket #'dash-period = #0 \ottava #1 <c' f c'>8
    \ottava #0 <c, f c'>8 ^"loco."  }