Repaired hello_client example
Repaired hello_client example

scionrep/scioncc,ooici/pyon,mkl-/scioncc,crchemist/scioncc,mkl-/scioncc,crchemist/scioncc,scionrep/scioncc,ooici/pyon,crchemist/scioncc,scionrep/scioncc,mkl-/scioncc