[FIX] auto_backup: bad reference to field sftp_private_key (#423)

Bump module version to 8.0.1.0.1

auto_backup/__openerp__.py

@@ -7,7 +7,7 @@
 {
     "name": "Database Auto-Backup",
     "summary": "Backups database",
-    "version": "8.0.1.0.0",
+    "version": "8.0.1.0.1",
     "author": (
         "VanRoey.be - Yenthe Van Ginneken, Agile Business Group,"
         " Grupo ESOC Ingeniería de Servicios,"

auto_backup/models/db_backup.py

@@ -274,7 +274,7 @@ class DbBackup(models.Model):
             "Trying to connect to sftp://%(username)s@%(host)s:%(port)d",
             extra=params)
         if self.sftp_private_key:
-            params["private_key"] = self.stfpprivatekey
+            params["private_key"] = self.sftp_private_key
             if self.sftp_password:
                 params["private_key_pass"] = self.sftp_password
         else: