Feature request: enable omitting the root note name when repeating chord inverted

[Henrik Pitkala]

> I'm not top posting

I'd like a feature to disable the chord root name printing, and just print
the slash and the inversion. The rationale for this request is a more
compact chord line.

\version "2.19.6"
\chordmode {
    c c/e c/g
}

Current output:
  C  C/e  C/g

Desired possibility:
  C  /e  /g

Suggestion for the command to achieve this:
\set chordRepeatRootNote = ##f

There's an LSR snippet over here but it's way too tedious to use in normal use:
http://lsr.di.unimi.it/LSR/Item?id=776