PEP8 changes

Added a new line for PIP8 requirement.

src/onelogin/saml2/utils.py

@@ -38,6 +38,7 @@
     xmlsec.initialize()
     globals()['xmlsec_setup'] = True
 
+
 def print_xmlsec_errors(filename, line, func, error_object, error_subject, reason, msg):
     """
     Auxiliary method. It override the default xmlsec debug message.