Re: [PATCH 2/6] revisions: split the pure option parsing out from parse_revisions.

> +int handle_revision_opt(struct rev_info *revs, int argc, const char **argv,
> +			int *unkc, const char **unkv)
> +{
> +	const char *arg = argv[0];
> +
> +	/* pseudo revision arguments */
> +	if (!strcmp(arg, "--all") || !strcmp(arg, "--branches") ||
> +	    !strcmp(arg, "--tags") || !strcmp(arg, "--remotes") ||
> +	    !strcmp(arg, "--reflog") || !strcmp(arg, "--not") ||
> +	    !strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk"))
> +	{
> +		unkv[*unkc++] = arg;