trim error

[xcwen]

package main

import "github.com/syyongx/php2go"
import "fmt"

func main() {
        s := "13000"
        fmt.Printf("%s=>%s\n", s, php2go.Trim(s))

}

localhost:~$ go run a.go
13000=>13

[xcwen]

maybe change like this :

	if len(characterMask) == 0 {
		mask = " \t\n\r\x00\x0B"
	} else {
		mask = characterMask[0]
	}

[syyongx]

Thanks for your feedback, the bug has been fixed.