Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Let lpr build with -Wmissing-variable-declarations.

Mark variables static where possible and place the uid/euid variables in
lp.h, so that we can compile-time enforce that these variables have the
same type.

In usr.sbin/lpr/filters/lpf.c, use a less obtuse way of clearing the
buffer, that also avoids warnings.

MFC after: 1 week

Remove the advertising clause from UCB copyrighted files in usr.sbin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

More changes to use __FBSDID() for setting rcsids. For the filter
programs, minor Makefile changes are needed to find lp.cdefs.h.
For lpf.c, the 'sccsid' line is formatted to match style(9), and
a 'From:' is removed so the sccsid returns to what it was back
in the days of '-r CSRG' (1994).

Reviewed by: discussed with bde and obrien
MFC after: 15 days

Get rid of some minor compile-time errors by changing copyright/rcsid
definitions to the same format used in other lpr source files, and by
adding parenthesis to the right spot in one 'if' statement.

MFC after: 4 days

Fix about 90-100 warnings one gets when trying to compile lpr&friends
with BDECFLAGS on, mainly by adding 'const' to parameters in a number
of routine declarations. While I'm at it, ANSI-fy all of the routine
declarations. The resulting object code is exactly the same after
this update as before it, with the exception of one unavoidable
change to lpd.o on freebsd/alpha.

Also added $FreeBSD$ line to lpc/extern.h lpc/lpc.h lptest/lptest.c

Reviewed by: /sbin/md5, and no feedback from freebsd-audit

$Id$ -> $FreeBSD$

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Correct the Unix programmer's error #1: "char c = getc();".
Closes PR # bin/1386: lpf Text Filter does not w...

Submitted by: andreas@marvin.RoBIN.de

Remove trailing whitespace.

This commit was generated by cvs2svn to compensate for changes in r1553,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite usr.sbin Sources