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It seems like there is a lot of confusion going on with $nl vs
$nl-in/$nl-out. This is especially a problem given that things do not
complain if you pass a wrong named parameter to them (e.g. here nl is
ignored: 「open nl => “\r” …」).
There was an issue with our docs (see https://irclog.perlgeek.de/perl6/2016-11-19#i_13597877 ), which is now
fixed. However, once I started grepping our docs to see if there are any
other wrong mentions of $nl, I stumbled upon Proc.
So it seems like Proc can perfectly accept separate nl-in and nl-out, but
for some reason it doesn't.
My idea is that we should change it everywhere to nl-in/nl-out for
consistency reasons. However, some sort backward compatibility thingy
should be implemented so that we don't break existing code.
Migrated from rt.perl.org#130136 (status was 'new')
Searchable as RT130136$
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