Lower warning to allow building with gcc


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274896 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Lower warnings to fix build with gcc


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274897 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f