Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Fix some common typos in comments

- occured -> occurred
- normaly -> normally
- controling -> controlling
- fileds -> fields
- insterted -> inserted
- outputing -> outputting

MFC after: 1 week

MFH

Sponsored by: The FreeBSD Foundation

fmt(1): for pointers use NULL instead of 0

While here clean excessive not lint comment indentation.

fmt(1): reformat with indent(1).

Failed attempt to get nearer to style(9) and the format from the
original OpenBSD code. At least it should be readable now.

No functional change.

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

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

Tested with: make universe

Prevent strange crashes in fmt with absurd goal lengths introduced by the
support for wide characters.

If the sizeof (wchar_t) times max_length would yield a value beyond
representation in a size_t,

Prevent strange crashes in fmt with absurd goal lengths introduced by the
support for wide characters.

If the sizeof (wchar_t) times max_length would yield a value beyond
representation in a size_t, exit with a usage error up front, rather than
strange errors down the line from trying to malloc (well, realloc) with a size
of 0.

This is perhaps not the optimal behaviour - a clamp may be more appropriate as
we clamp the value of max_length now anyway, but this is at least better than
segfaulting or worse. On systems which are friendly to malloc with a value of 0
the results could end up being strange corruption of the output.

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Add support for multibyte characters.

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

Use warn() instead of perror().

Consistently use FBSDID

Usage style sweep: spell "usage" with a small 'u'.
Also change one case of blatant __progname abuse (several more remain)
This commit does not touch anything in src/{contrib,crypto,gnu}/.

Don't format lines that look like troff requests, for
compatibility with old fmt(1). New option -n permits
formatting of lines beginning with a dot character.

PR: bin/31392
MFC after: 3 days

The old fmt(1) always did what the new ``-l 8'' option does.
POLA: Changed the default to ``-l 8'' while still providing
a way to disable this feature with ``-l 0''.

PR: bin/29247
Reviewed by: iedo

The old fmt(1) always did what the new ``-l 8'' option does.
POLA: Changed the default to ``-l 8'' while still providing
a way to disable this feature with ``-l 0''.

PR: bin/29247
Reviewed by: iedowse

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Don't call errx() with a variable format string

MFC after: 1 week

Cast size_t -> int to satisfy printf %* constraints on the alpha.

fmt(1) rewrite by Gareth McCaughan.

PR: bin/5901, bin/12242, bin/19071
Submitted by: Gareth McCaughan <gjm11@dpmms.cam.ac.uk>
Obtained from: OpenBSD + ctype(3), WARNS=2, and manpage cleanup
MFC aft

fmt(1) rewrite by Gareth McCaughan.

PR: bin/5901, bin/12242, bin/19071
Submitted by: Gareth McCaughan <gjm11@dpmms.cam.ac.uk>
Obtained from: OpenBSD + ctype(3), WARNS=2, and manpage cleanup
MFC after: 2 weeks

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$Id$ -> $FreeBSD$

Fix a number of fixed-size buffers etc.

PR: bin/4520
Submitted by: gjm11@dpmms.cam.ac.uk (Gareth McCaughan)

Pre-allocate buffer to avoid core dump in corner cases.
PR: 2968
Submitted by: Gareth McCaughan <gjm11@dpmms.cam.ac.uk>

Add rcsid, prototypes. Use err(3).

Removed inconsistent declaration of malloc(). `make world' with DESTDIR
set to something other than "/" now actually works.

Add -c flag to fmt to center lines.

Fix a segfault which occurs when it gets an empty input line.
Closes PR bin/1153

Reviewed by: smpatel
Submitted by: Matthew C. Mead (mmead@Glock.COM)