load the pipe-delimited file p. it is organized with 3 fields on each line: firstname|lastname|birthday. search for the firstname f and last name l, replacing the birthday with b. write the file back out in the same pipe-delimited format.
warning: lf will be replaced by crlf in package-lock.json. the file will have its original line endings in your working directory warning: lf will be replaced by crlf in package.json. the file will have its original line endings in your working directory