tests/func: remove --nosalt for openssl

Remove it fix a segfault on ubuntu-13.04. Though I don't know why.

Signed-off-by: Liu Yuan <namei.unix@gmail.com>
Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Merge branch 'stable-0.7' of github.com:/collie/sheepdog into stable-0.7