Enable WARNS=4 by default for usr.bin, except for:
awk bdes checknr compile_et error gss hxtool kgetcred kinit
klist ldd less lex locale login m4 man menuc mk_cmds
mklocale msgc openssl rpcgen rpcinfo sdiff spell ssh
string2key telnet tn3270 verify_krb5_conf xlint

branches: 1.5.2;
Further cleanup. Merge a bit of duplicate code. Don't roll private copies
of str(l)cpy or rename; check said rename for failure. Set WARNS=4.

RCS ID police

Sync with 4.4BSD-Lite2

Add RCS indentifiers.

branches: 1.1.1;
added, from net/2 (patch 124).

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.

New sentence, new line.

Whitespace cleanup.

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.

WARNSify, fix .Nm usage, deprecate register

Sync with 4.4BSD-Lite2

Add RCS indentifiers.

branches: 1.1.1;
added, from net/2 (patch 124).

fix some error handling.

Assert equality, not assignment, in fsplit, and say who guarantees it.

branches: 1.28.2; 1.28.8;
Use __dead

Rename internal getline() function to get_line() so it does
conflict with the soon to be added getline(3) libc function.

Two robustness fixes:
(1) make ridiculously small filename buffer larger;
(2) don't accidentally try to generate files with names containing '/'.

One leftover trailing whitespace, caused by a merge botch at my end.

Further cleanup. Merge a bit of duplicate code. Don't roll private copies
of str(l)cpy or rename; check said rename for failure. Set WARNS=4.

Avoid running off the end of the name buffer when extracting a filename
from the program text.

Clean up argument handling.
- Use getopt instead of rolling one's own.
- Don't copy the -e arguments unnecessarily, and specifically, don't
copy them into a small static buffer and zoom off the end.
- Don't zoom off the end of the array of -e option files, either.

C has a neat feature called a 'struct'. Use one, instead of
FORTRAN-style parallel arrays.

Index arrays according to customary C idioms, instead of a weird mix of
C and FORTRAN thinking.

Avoid using side-effecting macros.

Scratch variables shouldn't be global.

KNF, formatting, and whitespace cleanup. No functional change intended.

Sprinkle static and const. Use NULL and '\0', not 0, where appropriate.
Fix typo in comment.

Use <stdbool.h> and <err.h>.

Ansify and de-__P().

branches: 1.13.4;
Remove the \n and tabs from the __COPYRIGHT() strings.
Tweak to use a consistent format.

Error out instead of dumping core if we can't write (one of) the output
files. Fixes PR 36725.

branches: 1.11.2; 1.11.4; 1.11.10; 1.11.12; 1.11.22; 1.11.26; 1.11.28;
No need to call isupper() before tolower()

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

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

use bounded string op

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

char -> unsigned char

#elsej (!) should be #else

WARNSify, fix .Nm usage, deprecate register

Sync with 4.4BSD-Lite2

pull in string.h

Add RCS identifiers.

branches: 1.1.1;
added, from net/2 (patch 124).