message: go/tools: Simplify integer parsing in prf_set_cli.go.
  Use strconv.ParseInt() with an explicit bit size and remove the redundant bounds checking.
diff: @@ -46,9 +46,9 @@ func main() {
  keysetFilename := os.Args[1]
  dataFilename := os.Args[2]
  prfFilename := os.Args[3]
  - outputLength, err := strconv.Atoi(os.Args[4])
  - if err != nil || outputLength < 0 || outputLength >= 1<<32 {
  - log.Fatalf("Output length is not a uint32, but %q", os.Args[4])
  + outputLength, err := strconv.ParseInt(os.Args[4], 10, 32)
  + if err != nil {
  + log.Fatalf("Failed parsing output-length (%q): %v\n", os.Args[4], err)
  }
  log.Printf("Using keyset from file %q to compute PRFs of data from file %q. The resulting PRFs will be written to file %q.\n",
  