tibble 3.1.6

• set_num_opts() and set_char_opts() are reexported from pillar (#959).
• view() uses rlang::expr_deparse(width = Inf) to avoid errors with long |> pipes (#957).
• new_tibble() checks that the nrow argument is nonnegative and less than 2^31 (#916).
• tbl_sum.tbl_df() has an ellipsis in its formals for extensibility.