Virtualize if_bridge(4) cloner.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272568 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Keep struct filedescent comments within 80-char limit.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272569 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Virtualize if_disc(4) cloner.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272570 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f