\revert Glissando #'bound-details #'left #'padding not working

[address@hidden]

Hey all,

I got this warning from current master:

defs-devel.ly:210:36: Avertissement : Ignoring non-music expression
\revert Glissando #'bound-details 
                                  #'left #'padding

This syntax used to work.  I couldn't find anything about it's being changed in 
changes.tely

Any intuition as to what's going on?

Cheers,
MS