bootstrap:cprinter: note FIXME on complete lack of cleanup of "_" variables
bootstrap:cprinter: note FIXME on complete lack of cleanup of "_" variables

Anonymous variables should have the same lifetime than named variables,
but that's not at all what cprinter implements. Maybe we had a different
view in the past (who can remember?) but this makes no sense now.

nanocritical/n,nanocritical/n,nanocritical/n,nanocritical/n