Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Fix sys.fs.tmpfs.mknod_test.{char, block} by reverting r321967

In r321967 ngie "fixed" these tests by changing their expectations to match
the device numbers produced by the new ino64 code. But it

Fix sys.fs.tmpfs.mknod_test.{char, block} by reverting r321967

In r321967 ngie "fixed" these tests by changing their expectations to match
the device numbers produced by the new ino64 code. But it wasn't the tests
that were broken, it was the kernel. bde fixed the kernel in r335053.

Reported by: Jenkins
MFC after: Never (only applies to >= 12)

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Merge ^/head r321383 through r322397.

MFhead@r321970

MFhead@r321967

Chase r321920 and r321930 (dev_t being widened)

The layout of st_rdev has changed after this commit, and assumptions made
in the NetBSD tests are no longer valid. Change the hardcoded assumed
values

Chase r321920 and r321930 (dev_t being widened)

The layout of st_rdev has changed after this commit, and assumptions made
in the NetBSD tests are no longer valid. Change the hardcoded assumed
values to account for the fact that major/minor are now represented by
64 bits as opposed to the less precise legacy precision of 16 bits.

PR: 221048
Relnotes: st_rdev layout changed; warning about impact of r321920 to
downstream consumers

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Merge ^/head r318380 through r318559.

sys/fs/tmpfs/vnd_test: make md(4) allocation dynamic

The previous logic was flawed in the sense that it assumed that /dev/md3
was always available. This was a caveat I noted in r306038, that I hadn'

sys/fs/tmpfs/vnd_test: make md(4) allocation dynamic

The previous logic was flawed in the sense that it assumed that /dev/md3
was always available. This was a caveat I noted in r306038, that I hadn't
gotten around to solving before now.

Cache the device for the mountpoint after executing mdmfs, then use the
cached value in basic_cleanup(..) when unmounting/disconnecting the md(4)
device.

Apply sed expressions to use reuse logic in the NetBSD code that could
also be applied to FreeBSD, just with different tools.

Differential Revision: D10766
MFC after: 1 week
Reviewed by: bdrewery
Sponsored by: Dell EMC Isilon

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Merge ^/head r313301 through r313643.

Merge content from ^/projects/netbsd-tests-upstream-01-2017 into ^/head

The primary end-goal of this drop is ease future merges with NetBSD and
collaborate further with the NetBSD project.

The goal

Merge content from ^/projects/netbsd-tests-upstream-01-2017 into ^/head

The primary end-goal of this drop is ease future merges with NetBSD and
collaborate further with the NetBSD project.

The goal was (largely, not completely as some items are still oustanding
in the NetBSD GNATS system) achieved by doing the following:
- Pushing as many changes required to port contrib/netbsd-tests
back to NetBSD as possible, then pull the upstream applied changes
back in to FreeBSD.
- Diff reduce with upstream where possible by:
-- Improving libnetbsd header, etc compat glue.
-- Using _SED variables to modify test scripts on the fly for items
that could not be upstreamed to NetBSD.

As a bonus for this work, this change also introduces testcases for
uniq(1).

Many thanks to Christos for working with me to get many of the changes
back into the NetBSD project.

In collaboration with: Christos Zoulas <christos@netbsd.org>
MFC after: 1 month
Sponsored by: Dell EMC Isilon

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Use _SED instead of hacking tests rewriting mknod ... p as mkfifo

Similar to r312297

Use _SED to rewrite mknod ... p command as mkfifo instead of
adding an unnecessary diff to the test

Merge ^/head r307383 through r307735.

Integrate contrib/netbsd-tests/fs/tmpfs into the FreeBSD test suite
as tests/sys/fs

These testcases exercise tmpfs support

MFC after: 2 weeks
Sponsored by: Dell EMC Isilon