Re: [PATCHv2 8/8] reflog: use parse_config_key in config callback

Jeff King [off-list ref] writes:

This doesn't save any lines, but does keep us from doing
error-prone pointer arithmetic with constants.

Yeah, this and 7/8 shows that the true value of the new parse
function is not line number reduction but clarity of the calling
code.  There is really no point making everybody implement "last_dot
is there, so the subsection name must be between the section name
and that last_dot" like the original before this patch.

Thanks.  Will read it over again and then apply.