VOP_PRINT(9) on FreeBSD

The text b6a1f7f1cc5c, as FreeBSD 2.2.8-RELEASE, FreeBSD 2.2.7-RELEASE, FreeBSD 2.2.6-RELEASE, FreeBSD 2.2.5-RELEASE, FreeBSD 2.2.2-RELEASE shipped it.

print debugging information

VOP_PRINT(9) on FreeBSD now