src/usr.bin/fold, branch release/9.2.0

Remove the advertising clause from UCB copyrighted files in usr.bin. This

2010-12-11T08:32:16+00:00

is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with:	imp, rwatson

Fix a segmentation fault in argument processing.

2010-11-06T17:48:46+00:00

The crash was caused by a command line such as this one:
# foldl -b1

PR:		bin/151592
Reported by:	Marcus Reid 
Tested by:	Marcus Reid 
MFC after:	3 days

Revert most part of 200420 as requested, as more review and polish is

2009-12-13T03:14:06+00:00

needed.

Remove unneeded header includes from usr.bin/ except contributed code.

2009-12-11T23:35:38+00:00

Tested with:	make universe

Mention what underlining is meant here.

2006-12-15T11:23:59+00:00

Add cross-reference to fmt(1) and a fairly standard ENVIRONMENT section.

2004-08-02T11:15:01+00:00

Add support for multibyte characters and characters that take up more

2004-06-24T15:12:29+00:00

than one column position.

ANSIify function definitions.

2002-09-04T23:29:10+00:00

Add some constness to avoid some warnings.
Remove use register keyword.
Deal with missing/unneeded extern/prototypes.
Some minor type changes/casts to avoid warnings.

Reviewed by:	md5

Only advance the column position for printable characters, update manual

2002-06-17T12:11:05+00:00

page to emphasise that we count column positions, not characters.

Typo: use plural now that we have more than one option.

2002-05-25T03:08:21+00:00