Merge from upstream:

   - djm@cvs.openbsd.org 2012/04/11 13:34:17
     [ssh-keyscan.1 ssh-keyscan.c]
     now that sshd defaults to offering ECDSA keys, ssh-keyscan should also
     look for them by default; bz#1971

Approved by:	des
Update vendor/opensolaris to last OpenSolaris state (13149:b23a4dab3d50)
Add ZFS bits to vendor/opensolaris

Obtained from:	https://hg.openindiana.org/upstream/oracle/onnv-gate
Move dtrace manual page to new vendor location
Import relevant vendor manual pages from illumos-gate
revision 13304:b54231762cfa

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor/illumos/dist to pre libzfs_core state (dtrace and ctf part)
illumos-gate revision 13742:b6bbdd77139c

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor/illumos/dist to pre libzfs_core state (zfs part)
illumos-gate revision 13742:b6bbdd77139c

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Add zhack command missing from vendor import
illumos-gate revision 13742:b6bbdd77139c

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor-sys/illumos/dist to illumos-gate 13752:9f5f6c52ba19
(zfs part)

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Vendor import of OpenSSH 6.0p1.
Remove autoprops :(
Vendor import of OpenSSH 6.1p1.
Update vendor/illumos/dist and vendor-sys/illumos/dist
to illumos-gate 13934:9e23a7f7b812

Illumos ZFS issues:
 3422 zpool create/syseventd race yield non-importable pool
 3425 first write to a new zvol can fail with EFBIG
Update vendor-sys/illumos/dist to illumos-gate version 13937:6b4f289e7094

Illumos ZFS issues:
 3468 mdb enhancements for zfs development (not relevant for FreeBSD)
Update vendor/illumos/dist and vendor-sys/illumos/dist
to illumos-gate 13939:20e4d8d8da6d

illumos dtrace issues:
  3511 dtrace.c erroneously checks for memory alignment on amd64
Update vendor/illumos/dist and vendor-sys/illumos/dist
to illumos-gate 13941:d48547176ab4

Illumos ZFS issues:
  3498 panic in arc_read(): !refcount_is_zero(&pbuf->b_hdr->b_refcnt)
Update vendor-sys/illumos/dist to illumos-gate version 13945:7a9c1d41dfbe

Illumos ZFS issues:
  3507 Tunable to allow block allocation even on degraded vdevs
Update vendor-sys/illumos/dist to illumos-gate version 13949:4f6a155f70fe

Illumos ZFS issues:
  3512 rounding discrepancy in sa_find_sizes()
  3513 mismatch between SA header size and layout
Update vendor-sys/illumos/dist to illumos-gate 13952:7a22d0770fc8

Illumos ZFS issues:
  3522 zfs module should not allow uninitialized variables
Update vendor/illumos/dist and vendor-sys/illumos/dist
to illumos-gate 13953:0cc6917308f7

Illumos dtrace issues:
  3529 iostat should display time used by dtrace
Update vendor/illumos/dist and vendor-sys/illumos/dist
to illumos-gate 13957:512faafc0eaf

Illumos ZFS issues:
  3537 want pool io kstats