Fix deprecation warning about escaped chars
Fix deprecation warning about escaped chars

Python3 interprets string literals as Unicode strings.
This means that \S is treated as an escaped Unicode character.
To fix this the RegEx patterns should be declared as raw strings.

Signed-off-by: Ivan Kanakarakis <f60d6943d72436645c4304926eeeac2718a1142c@gmail.com>

SUNET/SATOSA,its-dirg/SATOSA,SUNET/SATOSA