Always send NNTP QUIT after server-test

sabnzbd/utils/servertests.py

@@ -119,8 +119,12 @@ def test_nntp_server(host, port, server=None, username=None, password=None, ssl=
             nw.clear_data()
             nw.recv_chunk(block=True)
         except:
+            # Some internal error, not always safe to close connection
             return False, unicode(sys.exc_info()[1])
 
+    # Close the connection
+    nw.terminate(quit=True)
+
     if nw.status_code == '480':
         return False, T('Server requires username and password.')
 
@@ -136,5 +140,3 @@ def test_nntp_server(host, port, server=None, username=None, password=None, ssl=
     else:
         return False, T('Could not determine connection result (%s)') % nntp_to_msg(nw.data)
 
-    # Close the connection
-    nw.terminate(quit=True)