Fix typo found by codespell

[DimitriPapadopoulos]

I think converted should be repeated here, but perhaps the intent was cut?

[kmuehlbauer]

Yes, cut in the sense of truncated is correct.

Eg, if we have ps (picosecond) for instance, they would be truncated to ns.

[keewis]

let's use truncated then?

[kmuehlbauer]

Thanks @DimitriPapadopoulos!