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

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

Add missing static keywords to column(1)

Remove the advertising clause from UCB copyrighted files in usr.bin. This
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 the fix in rev. 1.15 so that we jump to the next column
instead of always skipping it.

MFC after: 3 days

Add missing parentheses to fix a segmentation fault that is easily
reproducable with `jot -s " " 400 1 | column -t'. The bug was present
in the the original CSRG 'column -t' added in 1989.

The change to make column use roundup(x, TAB) rounded things to the
current tab, however the code it replaced wanted to round to the
next TAB. Consequently things like this:

( echo 1 ; echo 2 ) | column

cause column to loop indefinitely. This patch is slightly different
from the one Gary submitted, but is closer to the original code.

Submitted by: Gary Cody <gary@lyranthe.org>
MFC after: 1 week

Take a swing at using roundup().

Add support for multibyte characters.

Avoid passing negative values to isspace() on machines with signed chars.

ANSify function definitions to avoid a warning.

remove __P

Style improvements recommended by Bruce as a follow up to some
of the recent WARNS commits. The idea is:

1) FreeBSD id tags should follow vendor tags.
2) Vendor tags should not be compiled (though copyrights probably should).
3) There should be no blank line between including cdefs and __FBSDIF.

Use __FBSDID().

WARNS=2 fixup.

Remove the misnamed `emalloc' and replace its uses with calloc (along
with error checking) which it effectively was. (malloc+memset)

Round up before checking if the width is smaller than the widest
column, otherwise we may divide by zero later.

PR: 26283
Reviewed by: roam

Tweaks to allow compiling -Wall (mostly adding "const" to char rcsid[]).

Add missing -s flag in usage string.

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

This commit was generated by cvs2svn to compensate for changes in r23690,
which included commits to RCS files with non-trunk default branches.

Import some parts of CSRG 4.4BSD-Lite2 usr.bin sources to fix tree build.

BSD 4.4 Lite Usr.bin Sources