Pull up following revision(s) (requested by sevan in ticket #174):
lib/libc/sys/chmod.2: revision 1.48
lib/libc/sys/stat.2: revision 1.59
lib/libc/sys/unlink.2: revision 1.30
lib/libc/sys/lseek.2: revision 1.25
lib/libc/sys/getuid.2: revision 1.18
lib/libc/sys/chown.2: revision 1.37
lib/libm/man/exp.3: revision 1.32
lib/libm/man/log.3: revision 1.7
lib/libc/sys/open.2: revision 1.60
lib/libc/stdio/fopen.3: revision 1.36
lib/libc/stdio/putc.3: revision 1.14
lib/libc/sys/mount.2: revision 1.51
share/man/man9/copy.9: revision 1.22
share/man/man9/uiomove.9: revision 1.20
lib/libc/sys/setuid.2: revision 1.23
lib/libc/sys/close.2: revision 1.18
sbin/init/init.8: revision 1.61
lib/libc/sys/write.2: revision 1.36
lib/libc/sys/read.2: revision 1.39
sbin/init/init.8: revision 1.62
lib/libc/sys/wait.2: revision 1.40
usr.bin/tty/tty.1: revision 1.10
lib/libc/sys/link.2: revision 1.33
usr.bin/du/du.1: revision 1.24
lib/libc/stdlib/exit.3: revision 1.17
usr.bin/su/su.1: revision 1.53
usr.bin/mail/mail.1: revision 1.66
lib/libc/sys/fork.2: revision 1.25
usr.bin/su/su.1: revision 1.54
usr.bin/mail/mail.1: revision 1.67
lib/libm/man/sin.3: revision 1.15
share/man/man9/intro.9: revision 1.26
share/man/man5/utmp.5: revision 1.17
lib/libc/compat-43/creat.3: revision 1.17
lib/libc/time/ctime.3: revision 1.61
lib/libcompat/4.1/stty.3: revision 1.10
usr.bin/dc/dc.1: revision 1.3
lib/libm/man/cos.3: revision 1.17
lib/libc/sys/chdir.2: revision 1.23
lib/libc/gen/exec.3: revision 1.30
lib/libc/gen/exec.3: revision 1.31
games/bcd/bcd.6: revision 1.18
games/bcd/bcd.6: revision 1.19
usr.bin/write/write.1: revision 1.7
usr.bin/wc/wc.1: revision 1.18
usr.bin/pr/pr.1: revision 1.24
usr.bin/who/who.1: revision 1.25
lib/libc/sys/mkdir.2: revision 1.30
lib/libc/stdio/getc.3: revision 1.13
usr.bin/sort/sort.1: revision 1.40
usr.bin/mesg/mesg.1: revision 1.11
share/man/man5/passwd.5: revision 1.34
sort was there since v1
https://www.bell-labs.com/usr/dmr/www/man61.pdf
dc was in v1
https://www.bell-labs.com/usr/dmr/www/man12.pdf
du was in v1
https://www.bell-labs.com/usr/dmr/www/man12.pdf
mail was in v1
https://www.bell-labs.com/usr/dmr/www/man12.pdf
mesg was in v1
https://www.bell-labs.com/usr/dmr/www/man12.pdf
Document history
https://www.bell-labs.com/usr/dmr/www/man13.pdf
su was in v1
https://www.bell-labs.com/usr/dmr/www/man13.pdf
Document history
https://www.bell-labs.com/usr/dmr/www/man13.pdf
Document history
https://www.bell-labs.com/usr/dmr/www/man14.pdf
Update URL
write was in v1
https://www.bell-labs.com/usr/dmr/www/man14.pdf
grammar
passwd(5) was in v1
https://www.bell-labs.com/usr/dmr/www/man51.pdf
utmp(5) was present in v1
https://www.bell-labs.com/usr/dmr/www/man51.pdf
Earliest version of wtmp I could find was in v3
https://minnie.tuhs.org/cgi-bin/utree.pl?file=V3/man/man5/wtmp.5
Document history of chdir(2)
https://www.bell-labs.com/usr/dmr/www/man21.pdf
Document history of chmod(2)
https://www.bell-labs.com/usr/dmr/www/man21.pdf
Document history of chown(2)
https://www.bell-labs.com/usr/dmr/www/man21.pdf
Document history
https://www.bell-labs.com/usr/dmr/www/man21.pdf
create was present in v1
https://www.bell-labs.com/usr/dmr/www/man21.pdf
Document history of exec()
Move statement on execlpe() & execvpe() to HISTORY section.
Document history
https://www.bell-labs.com/usr/dmr/www/man21.pdf
fork was present in v1
https://www.bell-labs.com/usr/dmr/www/man21.pdf
stat() was present in v1
https://www.bell-labs.com/usr/dmr/www/man22.pdf
document history of fstat()
https://www.bell-labs.com/usr/dmr/www/man21.pdf
getuid was present in v1
https://www.bell-labs.com/usr/dmr/www/man21.pdf
Document history
https://www.bell-labs.com/usr/dmr/www/man21.pdf
Document history
https://www.bell-labs.com/usr/dmr/www/man21.pdf
stty & gtty were around since v1
https://www.bell-labs.com/usr/dmr/www/man21.pdf
https://www.bell-labs.com/usr/dmr/www/man22.pdf
mount & umount were present in v1
https://www.bell-labs.com/usr/dmr/www/man22.pdf
Open was present in v1
https://www.bell-labs.com/usr/dmr/www/man22.pdf
read was present in v1
https://www.bell-labs.com/usr/dmr/www/man22.pdf
seek was present in v1
https://www.bell-labs.com/usr/dmr/www/man22.pdf
setuid was in v1
https://www.bell-labs.com/usr/dmr/www/man22.pdf
unlink was presen in v1
https://www.bell-labs.com/usr/dmr/www/man22.pdf
wait was present in v1
https://www.bell-labs.com/usr/dmr/www/man22.pdf
write was present in v1
https://www.bell-labs.com/usr/dmr/www/man22.pdf
start documenting history
exp was present in v1
https://www.bell-labs.com/usr/dmr/www/man31.pdf
Start documenting history
https://www.bell-labs.com/usr/dmr/www/man31.pdf
Start documenting history
https://www.bell-labs.com/usr/dmr/www/man31.pdf
log appeared in v1
https://www.bell-labs.com/usr/dmr/www/man31.pdf
putc & putw were in v1
https://www.bell-labs.com/usr/dmr/www/man31.pdf
putchar was in v4
https://minie.tuhs.org/cgi-bin/utree.pl?file=V4/man/man3/putchr.3
Start documenting history
https://www.bell-labs.com/usr/dmr/www/man31.pdf
Document history.
https://www.bell-labs.com/usr/dmr/www/man11.pdf
Between v1 & v6 UNIX, bcd was rewritten in C, but I don't know if which
version,
hence I've skipped mentioning it.
End sentence with a dot.
Remove superfluous Pp.
Remove superfluous Pp.
Remove superfluous Ns.
Remove superfluous Pp.
fetch(9) -> ufetch(9)
fetch(9) -> ufetch(9). Remove superfluous Pp.
fetch(9) -> ufetch(9). Remove reference to unimplemented ppi(9).