TODO


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This should only used when necessary when
when a specific flag is used.
  Before all lines, add 10ⁿ−1 empty lines
  where n is as small as possible to retain
  as line numbers but with a constant
  multiple.
  Then add m10ᷜ number of empty lines
  at the top of the file, where k is large
  and n is the number specified above.