sdp in one line "\n" or "\r\n" formated

sdp_parser.go

package main

import (
    "flag"
    "fmt"
    "io/ioutil"
    "os"
    "strings"
)

var copyright string = "******** Create by LIDE ********"

var useage string = "Useage: sdp_parser -f <filename>"

func main() {
    filename := flag.String("f", "sdp file", "sdp file given")

    flag.Parse()

    if count := len(os.Args); count != 3 { 
        fmt.Printf("%s\n", useage)
        os.Exit(-1)
    }   

    sdp, e := ioutil.ReadFile(*filename)
    if e != nil {
        fmt.Println("read file error", e.Error())
        return
    }   
    var sdp2 string = string(sdp)

    fmt.Println("================================================================\n")
    fmt.Println(copyright)
    str := strings.Split(sdp2, "\\n")
    for _, l := range str {
        fmt.Println(strings.Replace(l, "\\r", "", -1))
    }   
    fmt.Println("================================================================\n")

}