_EstablishContext did not return any value
_EstablishContext did not return any value

Fix a compiler bug:
smartcard/scard/scard_wrap.c: In function ‘_EstablishContext’:
smartcard/scard/scard_wrap.c:3278:10: warning: variable ‘lRet’ set but
not used [-Wunused-but-set-variable]
     long lRet;
               ^

moreati/pyscard,moreati/pyscard,LudovicRousseau/pyscard,LudovicRousseau/pyscard,LudovicRousseau/pyscard,moreati/pyscard