One hunk of a patch-format diff.
header is reserved for future function/context-heading support and is
always nil in 0.x.
Summary
Types
@type t() :: %Gitility.Diff.Hunk{ header: nil, lines: [Gitility.Diff.Line.t()], new_lines: non_neg_integer(), new_start: non_neg_integer(), old_lines: non_neg_integer(), old_start: non_neg_integer() }
A patch hunk; header is reserved and always nil in 0.x.