fixed edit

edit.go

@@ -0,0 +1,36 @@
+package sshvault
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+)
+
+// Edit opens $EDITOR default to vi
+func (v *vault) Edit(data []byte) ([]byte, error) {
+	tmpfile, err := ioutil.TempFile("", v.Fingerprint)
+	if err != nil {
+		return nil, err
+	}
+	defer os.Remove(tmpfile.Name())
+	err = ioutil.WriteFile(tmpfile.Name(), data, 0600)
+	if err != nil {
+		return nil, err
+	}
+	editor := os.Getenv("EDITOR")
+	if editor == "" {
+		editor = "vi"
+	}
+	cmd := exec.Command(editor, tmpfile.Name())
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	err = cmd.Run()
+	if err != nil {
+		return nil, err
+	}
+	b, err := ioutil.ReadFile(tmpfile.Name())
+	if err != nil {
+		return nil, err
+	}
+	return b, nil
+}