- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

sleep: Explain in a comment why the [EINTR] check is there.

Suggested by: eadler

sleep: Improve nanosleep() error handling:

* Work around kernel bugs that cause a spurious [EINTR] return if a
debugger (such as truss(1)) is attached.

* Write an error message if an error other than [EINTR] occurs.

PR: bin/178664

Document the new argument parser for sleep(1) and SIGINFO behaviour.
Remove higlight for the unportability notice.

MFC after: 3 weeks

Simplify argument parser by using sscanf(); simplify usage() by not
refusing to use stdio.
Reduce nesting level in the sleep loop by returning earlier for negative
timeouts.
Limit the maximum timeout to INT_MAX seconds.

Submitted by: bde
MFC after: 3 weeks

Deal with proper format for printing time_t.

Reported by: ache
MFC after: 3 weeks

Report the time left for the sleep on SIGINFO.
Be stricter in the checking of interval specification.

PR: bin/139345
MFC after: 3 weeks

Fix a comment.

Submitted by: Liam J. Foy

Add the new standard EXIT STATUS section where appropriate.
Sort standard sections in the (documented) preferred order.

/*- or .\"- or #- to begin license clauses.

Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

Fix warnings. This is now WARNS=9, std=c99 clean in i386.
Use return(0) for main() instead of exit(0). Makes it a
wee bit smaller.

Quiet warnings about copyright[].

Minimal take on previous commit -- remove getopt and printf. Static size
is reduced by 40k, dynamic by a few bytes.
Functional changes:
* "sleep -- arg" now returns usage() instead of ignoring the --
* "sleep -1" now returns immediately instead of returning usage()

Reviewed by: jmallett

Back out previous commit since there is controversy about changing so much
in sleep including duping strtol(3). Code changes also increased
dynamic size of sleep(1).

Remove getopt and strtol dependencies, reducing size of static exe.
Preserve older desired behavior, accept [+-]*[0-9]*\.[0-9]*
Remove a few unnecessary casts.

%ls -l /bin/sleep
-r-xr-xr-x 1 root wheel 61332 Oct 28 05:16 /bin/sleep
%ls -l /usr/obj/usr/src/bin/sleep/sleep
-rwxr-xr-x 1 root wheel 19124 Nov 13 12:12 /usr/obj/usr/src/bin/sleep/sleep

Submitted by: Tim Kientzle <kientzle@acm.org>

Consistently use FBSDID

Sort sections, use Ex macro in Diagnostics section, point out that the first
example only works with csh(1).

Add History section. sleep appeared in v4.

o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
they already are.
o Change
int
foo() {
...
to
int
foo(void)
{
...

Default to WARNS=2. Binary builds that cannot handle this must explicitly
set WARNS=0.

Reviewed by: mike

mdoc(7) police:

Avoid using parenthesis enclosure macros (.Pq and .Po/.Pc) with plain text.
Not only this slows down the mdoc(7) processing significantly, but it also
has an undesired (in this case) effect of disabling hyphenation within the
entire enclosed block.

WARNS= -> WARNS?=

Submitted by: Mike Barcroft <mike@q9media.com>

Silence WARNS=2 and BDECFLAGS on alpha and i386

MFC After: 1 week

Prepare for mdoc(7)NG.

Remove more single-space hard sentence breaks.

Restore reference to sleep(3).

Let sleep(1) handle fractions of a second (up to nanosecond).

This is a conservative change. It does the same thing in weird
cases like the old one. For example, 'sleep abcd' still sleeps
for zero seconds. `sleep 10.a' and `sleep 10.05aa' do the best
and not abort (ie: 10.a == 10 seconds, 10.05a == 10.05 seconds).

$Id$ -> $FreeBSD$

Describe proper signals behavior rather than just removing it.
Remove obsoleted reference to alarm(3).

Submitted by: bde

There is no special handling for SIGALRM as
sleep(3) is implemented using nanosleep(2).

Various spelling/formatting changes.

Submitted by: Philippe Charnier <charnier@xp11.frmug.org>

Correct use of .Nm. Add rcsid.

Describe signals behaviour now

compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.

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.

Sort cross references.

Cleanup man page and -Wall cleaning.

Added $Id$

This commit was generated by cvs2svn to compensate for changes in r1556,
which included commits to RCS files with non-trunk default branches.