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On Windows terminals ‘Ctrl-C’ now breaks out of waiting for keyboard input, fixing PR#18982.
‘pretty(ch)’ again correctly works with ‘ch’ a character vector of numbers.
‘length(<POSIXlt>) <- v’ is more careful about balancing, notably when ‘v’ is not integer, thanks to Suharto Anggono's remarks on the mailing list R-devel.