DEBUG_LOCKS no longer modifies 'struct vnode', nor does fstat(1) use it.
fstat(1) now uses libprocstat(9).  There is no userland impact to using this.

MFC after:	3 days


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272032 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f