Fixed server crashing whenever a user disconnected

Instead of trying to let Cobra handle the possible errors produced in
client input through bufio.NewReader(conn), I'm handling them manually
by returning the function if there's an error detected, therefore
severing the goroutine and letting the main server run normally

cmd/server.go

@@ -6,6 +6,7 @@ package cmd
 import (
 	"bufio"
 	"fmt"
+	//"log"
 	"net"
 	"strings"
 	"time"
@@ -58,8 +59,8 @@ func server(cmd *cobra.Command) {
 	cobra.CheckErr(err)
 	fmt.Printf("Listening on port %v...\n", lport)
 	for {
-		conn, err := ln.Accept()
-		cobra.CheckErr(err)
+		conn, _ := ln.Accept()
+		//cobra.CheckErr(err)
 		go handleConn(conn)
 	}
 
@@ -80,13 +81,18 @@ func handleConn(conn net.Conn) {
 	fmt.Print(final_message)
 	conn.Write([]byte("What's your name?\nName: "))
 	name, err := bufio.NewReader(conn).ReadString('\n')
-	cobra.CheckErr(err)
+	if err != nil {
+		return
+	}
 	var NewUser = new(chatter)
 	NewUser.Username = strings.TrimRight(name, "\n")
 	NewUser.IP = IP
 	for {
 		message, err := bufio.NewReader(conn).ReadString('\n')
-		cobra.CheckErr(err)
+		if err != nil {
+			fmt.Printf(NewUser.Username + " disconnected!\n")
+			return
+		}
 		fmt.Print("{" + NewUser.IP + "} " + NewUser.Username + ": " + message)
 		conn.Write([]byte(message))
 	}