Bug v2.23.0: command help for 'git push --recurse-submodules' is incorrect

System: Mac OS X 10.12.6
git --version: git version 2.23.0

	% git push --\?
	error: unknown option `?'
	usage: git push [<options>] [<repository> [<refspec>...]]

	[snip]

	    --recurse-submodules[=(check|on-demand|no)]
	                          control recursive pushing of submodules

I read this as saying that the argument to recurse-submodules is optional.  However,

	% git push --recurse-submodules
	fatal: recurse-submodules missing parameter
	zsh: exit 128   git push --recurse-submodules

Manual page (git push --help) seems to indicate that argument to recurse-submodules is required.

I'm guessing it's just the command help that's incorrect.

-- Andrew