Do our best to restore tab characters

[Dieken]

$ echo -e 'abc\t\t\tabc'
  # use mouse to select and copy the output, it should contain three tabs,
  # not expand to spaces.

$ touch 2024中华人民共和国
$ for i in `seq 1 20`; do touch text-text-text-text-text-text-$i; done 
$ gls
$ gls -C | cat
  # It should align correctly.