prolog vs prologue

[Ben Elliston]

Hans-Peter Nilsson <hp@bitrange.com> writes:

> > Which should it be, so that I can submit a patch to correct this?  Or
> > is it too late to fix, given that it will break existing command
> > lines?

> Can't you could keep the misspelled ones as undocumented options?

Perhaps, sure.  What is the convention for changing command line
options?  Is a synonym option kept around for backward compatibility?
If so, for how long?

Ben