Hi, According to the documentation, the section delimiter consists of at least two characters, and if you omit the second character when using -d/--section-delimiter, the second character is implied to be ':'. However, this doesn't seem to be the case in nl 9.3 if I provide a single non-ASCII char:
$ printf "a\nä:\nb" | nl -dä
1 a
2 ä:
3 b
If I add the ':' manually, I get the expected output:
$ printf "a\nä:\nb" | nl -dä:
1 a
b
Regards,
Daniel
