access(2) alarm(2) pause(2) were not ported from pwb to v7

Alan Glasser describes the incident that led to access(2) in
https://minnie.tuhs.org/pipermail/tuhs/2021-November/024657.html

access(2) alarm(2) pause(2) were also part of the "50 changes" tape

post v6 "50 bugs" / "diff tape" / "50 fixes" tape (Salus QCU, pp 138-139)
"fifty changes" tape
https://www.oreilly.com/openbook/opensources/book/kirkmck.html

"50 changes"
https://archive.org/details/unix_news_november-1976

tuhs/Applications/Spencer_Tapes/unsw3.tar.gz
usr/sys/v6unix/changenotes

45) The "access()" system call checks access permissions on the real
id's of the process regardless of the effective ones.  Doesn't return
stats, just does an internal "access()" to set u.u_error.

48) "alarm()" and "pause()" system calls are in to provide a user-mode
timeout capability.

with and ok schwarze@

2 files changed, 14 insertions, 10 deletions

diff --git a/lib/libc/gen/alarm.3 b/lib/libc/gen/alarm.3
index 0b06b46d1f0..b4aa10bf8ec 100644
--- a/lib/libc/gen/alarm.3
+++ b/lib/libc/gen/alarm.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: alarm.3,v 1.16 2021/06/18 22:21:29 cheloha Exp $
+.\"	$OpenBSD: alarm.3,v 1.17 2022/08/02 01:23:23 jsg Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993, 1994
 .\"	The Regents of the University of California.  All rights reserved.
@@ -27,7 +27,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: June 18 2021 $
+.Dd $Mdocdate: August 2 2022 $
 .Dt ALARM 3
 .Os
 .Sh NAME
@@ -84,9 +84,11 @@ function conforms to
 .Sh HISTORY
 An
 .Fn alarm
-system call appeared in the Programmer's Workbench (PWB/UNIX)
-and was ported to
-.At v7 .
+system call first appeared outside of Bell Labs in the
+.Dq 50 changes
+tape for
+.At v6 .
+It was first officially released with PWB/UNIX 1.0.
 For
 .Bx 4.1c ,
 it was reimplemented as a wrapper around the
diff --git a/lib/libc/gen/pause.3 b/lib/libc/gen/pause.3
index 97959017427..47ec9324226 100644
--- a/lib/libc/gen/pause.3
+++ b/lib/libc/gen/pause.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: pause.3,v 1.14 2015/09/23 08:52:56 sobrado Exp $
+.\"	$OpenBSD: pause.3,v 1.15 2022/08/02 01:23:23 jsg Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -27,7 +27,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: September 23 2015 $
+.Dd $Mdocdate: August 2 2022 $
 .Dt PAUSE 3
 .Os
 .Sh NAME
@@ -76,9 +76,11 @@ The call was interrupted.
 .Sh HISTORY
 A
 .Fn pause
-system call first appeared in the Programmer's Workbench (PWB/UNIX)
-and was then ported to
-.At v7 .
+system call first appeared outside of Bell Labs in the
+.Dq 50 changes
+tape for
+.At v6 .
+It was first officially released with PWB/UNIX 1.0.
 It was reimplemented as a wrapper around the
 .Fn sigpause
 and