Длинные номера nlinum-mode.

$ diff nlinum-vanil.el nlinum.el
129c129
<       (let ((line (line-number-at-pos))
---
>       (let ((line (mod (line-number-at-pos) 100))

$ diff nlinum-vanil.el nlinum.el
130c130
<             (fmt (format "%%%dd" nlinum--width)))
---
>             (fmt (format "%%0%dd" nlinum--width)))
134c134
<                         (str (format fmt line))
---
>                         (str (format fmt (mod line 100)))