bug#29604: man cut should mention no way to do ls -l|cut ...

[積丹尼 Dan Jacobson]

On (info "(coreutils) cut invocation")

‘-d INPUT_DELIM_BYTE’
‘--delimiter=INPUT_DELIM_BYTE’
     With ‘-f’, use the first byte of INPUT_DELIM_BYTE as the input
     fields separator (default is TAB).

please mention there is no way to indicate more than one character,
thus no way to process
$ ls -l | cut ...
and that one should use awk, etc. for that.

Also mention it on the cut(1) man page.