On Friday 2017-08-11 00:44, Jan Engelhardt wrote: >Some history for the mail archives: {} is not specified, but follows from >prominent use of | inside [] and the desire to have some kind of grouping for >non-optional things. I will — cautiously — claim that {} was an idea of mine >(barring any fourth party uses in completely unrelated projects elsewhere that >I do not know of); commit iptables.git#a8ad34cf11540d147b8aded6826a1452841d2aa7 >was the first to use '{}'. Ohwell, notsomuch. I found some {} in iproute2#985794ad38a55b214fae1c51058a81febef1941b dated 2004, so that is probably where I might have got the idea from. Credit where credit is due! -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html