use absolute file path to prevent errors after chdir.

go/qst.go

	"os"
	"os/exec"
	"os/signal"
	"path/filepath"
	"strings"
	"syscall"
	"time"
		}
		cmd = projectCmd
	}
	file, _ = filepath.Abs(file)
	cmd = strings.Replace(cmd, "{file}", file, -1)
	if err := os.Chdir(fileutil.Dir(file)); err != nil {
		log.Fatal(err)