Align the option name with upstream's s3gof3r change

--without-ssl -> --no-ssl

https://github.com/rlmcpherson/s3gof3r/commit/06a28aaeb431d162061556793bfb690d1d5fe671#diff-ea109317064b3b0efdd1141d8c0bd989R134
Merge pull request #895 from basho/refactor/s3gof3r-client-test

Golang client test with s3gof3r

Reviewed-by: kuenishi
Use standard lager for logs of "make test-client"