fix minor spelling error

gettor/utils/validate_email.py

@@ -170,7 +170,7 @@ def validate_email(email, check_mx=False, verify=False, debug=False, smtp_timeou
                     smtp.quit()
                 except smtplib.SMTPServerDisconnected:  # Server not permits verify user
                     if debug:
-                        logger.debug(u'%s disconected.', mx[1])
+                        logger.debug(u'%s disconnected.', mx[1])
                 except smtplib.SMTPConnectError:
                     if debug:
                         logger.debug(u'Unable to connect to %s.', mx[1])