change -P flag to -r for setting rcon password

update README

README.md

@@ -93,15 +93,15 @@ rcon, err := q3rcon.New(
 
 ## Command line
 
-Pass `host`, `port` and `password` as flags, for example:
+Pass `host`, `port` and `rconpass` as flags, for example:
 
 ```
-q3rcon -h=localhost -p=30000 -P="rconpassword" "mapname"
+q3rcon -h=localhost -p=30000 -r="rconpassword" "mapname"
 ```
 
 -   `host` defaults to "localhost"
 -   `port` defaults to 28960
--   `password` defaults to ""
+-   `rconpass` defaults to ""
 
 Arguments following the flags will be sent as rcon commands. You may send multiple arguments.
 
@@ -110,7 +110,7 @@ Arguments following the flags will be sent as rcon commands. You may send multip
 Pass `interactive (-i shorthand)` flag to enable interactive mode, for example:
 
 ```
-q3rcon -h=localhost -p=30000 -P="rconpassword" -i
+q3rcon -h=localhost -p=30000 -r="rconpassword" -i
 ```
 
 If interactive mode is enabled, any arguments sent on the command line will be ignored.

cmd/q3rcon/main.go

@@ -27,7 +27,7 @@ func main() {
 	var (
 		host     string
 		port     int
-		password string
+		rconpass string
 		loglevel int
 	)
 
@@ -35,8 +35,8 @@ func main() {
 	flag.StringVar(&host, "h", "localhost", "hostname of the server (shorthand)")
 	flag.IntVar(&port, "port", 28960, "port of the server")
 	flag.IntVar(&port, "p", 28960, "port of the server (shorthand)")
-	flag.StringVar(&password, "password", "", "rcon password")
-	flag.StringVar(&password, "P", "", "rcon password (shorthand)")
+	flag.StringVar(&rconpass, "rconpass", "", "rcon password")
+	flag.StringVar(&rconpass, "r", "", "rcon password (shorthand)")
 
 	flag.BoolVar(&interactive, "interactive", false, "run in interactive mode")
 	flag.BoolVar(&interactive, "i", false, "run in interactive mode")
@@ -49,7 +49,7 @@ func main() {
 		log.SetLevel(log.Level(loglevel))
 	}
 
-	rcon, err := connectRcon(host, port, password)
+	rcon, err := connectRcon(host, port, rconpass)
 	if err != nil {
 		log.Fatal(err)
 	}