fix import

libtisbackup/backup_samba4.py

@@ -21,6 +21,7 @@
 
 
 import sys
+
 try:
     sys.stderr = open('/dev/null')       # Silence silly warnings from paramiko
     import paramiko
@@ -32,6 +33,7 @@ sys.stderr = sys.__stderr__
 
 from .common import *
 
+
 class backup_samba4(backup_generic):
     """Backup a samba4 databases as gzipped tdbs file through ssh"""
     type = 'samba4'