Sync to 4.4BSD-Lite2

specify man pages the new way.

get section right; Luke Mewburn <lm@rmit.edu.au>

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Fix macro use, sort.

Rework the description of process priorities in renice(8).

It is inherently confusing, thanks to historical practice and
standards, so let's be very explicit.

Rearrange the description of the renice arguments and options.

Don't refer to "who" parameters that aren't defined anywhere, make it
clear how the options are actually interpreted (since it's not and
can't be getopt-style), and also document the behavior when a named
collection of processes doesn't start out with uniform priority.

The dangling "who" parameters issue seems to date back to 4.4.

Prompted by Ottavio Caruso.

emove duplicate RCS Id. Bump date for previous.

Added a reference to prenice(1)

ok riz@, mrg@

branches: 1.13.6; 1.13.12;
Fix markup.

branches: 1.12.42;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

.Nm does not need a dummy argument ("") before punctuation or
for correct formatting of the SYNOPSIS any longer.

Sort sections.

Whitespace cleanup.

Note that nice +20 only guarantees exclusion w.r.t. the base priority,
and not w.r.t. intermediate nice-levels. Correct english and formatting.

More and more .Os cleanups. .Os is defined in the tmac.doc-common file,
so we shouldn't override it with versions in the manpages. Many more to
come.

Overhaul...
- check numeric arguments properly.
- fix usage.
- add -n increment option.

WARNSify, fix .Nm usage, deprecate register, use warn

Add reference to nice(1).

Sync to 4.4BSD-Lite2

Add RCS indentifiers.

branches: 1.1.1;
Initial revision

renice: Make usage match man page more.

Fix usage check; reject renice without any targets, whether or not -n given.

Remove the \n and tabs from the __COPYRIGHT() strings.
Tweak to use a consistent format.

branches: 1.17.6;
convert __attribute__s to applicable cdefs.h macros

branches: 1.16.12;
- Exit with non-zero on errors (from Liam Foy)
- Pass lint.

Homogenize usage messages: make the 'usage' word all lowercase, as this seems
to be the most common practice in our tree.

Don't pass NULL as an integer argument.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

clear errno before strto(u)l() if we're going to test it for ERANGE afterwards

Don't need <sys/types.h> either (ref: SUSv2).

Little cleanup:
- Don't need to include <sys/time.h>, <sys/resource.h> does.
- Include <limits.h> for LONG_MIN/LONG_MAX.
- Be consistant with usage of (void) in front of printf()/fprintf().
- Sort include files.
- ANSIfy.

convert to use getprogname()

Deal with a current priority of -1; from Takahiro Kambe in PR bin/10227.

Make gcc 2.96 (and maybe earlier) happier. Include <stdlib.h>,<string.>,
etc. as appropriate to get exit,srncmp,abs,abort,etc.
Add -I${.CURDIR} to a few Makefiles

branches: 1.6.10;
Overhaul...
- check numeric arguments properly.
- fix usage.
- add -n increment option.

WARNSify, fix .Nm usage, deprecate register, use warn

Sync to 4.4BSD-Lite2

Include <sys/types.h> (needed in future because of <sys/resource.h>)

Add RCS identifiers.

branches: 1.1.1;
Initial revision