fix filter_cassandra_attributes.py python shebang
fix filter_cassandra_attributes.py python shebang

filter_cassandra_attributes.py is a python2 only script for now
so its shebang needs to specify this python2 dependency to avoid
breaking the scylla tools when the system default python is 3:

  File "/usr/bin/filter_cassandra_attributes.py", line 11
    print dump(dict(filter(lambda (a, b): a in cassandra_attributes, attributes.items())))
             ^
SyntaxError: invalid syntax

Signed-off-by: Alexys Jacob <ee25f2b26a23c85eb2940a5214ecb1801c877d19@gentoo.org>
Message-Id: <20170824151932.17801-1-ee25f2b26a23c85eb2940a5214ecb1801c877d19@gentoo.org>

scylladb/scylla-tools-java,scylladb/scylla-tools-java,scylladb/scylla-tools-java,scylladb/scylla-tools-java