René Scharfe [off-list ref] writes:

Am 21.10.2017 um 14:18 schrieb Junio C Hamano:

quoted

René Scharfe [off-list ref] writes:

quoted

FWIW, I use "-?" for that everywhere.  I have yet to find a command or
environment where it does something dangerous.

Yeah, it would have made the world a better place if we made that
choice back in 2008.  If we start a transition to make it so right
now, we might be able to make the world a better place by 2022,
perhaps.  I am not sure if the pain during the transition is worth
it, though.

"-?" works fine with builtins already -- they complain that the option
is unknown and then show the short help text.

Ah, I misunderstood what you meant, then.  I thought you were
advocating to move the built-in short-help support to know about and
explicitly react to "-?", and somehow forgot that it "works" more or
less already.

The fact that "-?" already works for most things is good, but the
transition pain still remains, as what's costly is to transition
people's expectation (i.e. "'-?' and not '-h' is the way to get
short help from any subcommand"), not the implementation to fill the
gaps for those that do not yet support '-?', I am afraid.