Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

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

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

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

Apply style(9) to usage(), fix markup of the manpage.

Add '-s' option and update the manual page. With this option, it prints
little more style(9) friendly output. For example:

%file2c -n 8 -s -x 'const char data[] = {' '};' < /etc/motd
const char data[] = {
0x46, 0x72, 0x65, 0x65, 0x42, 0x53, 0x44, 0x20,
0x37, 0x2e, 0x30, 0x2d, 0x43, 0x55, 0x52, 0x52,
0x45, 0x4e, 0x54, 0x20, 0x28, 0x42, 0x45, 0x41,
0x53, 0x54, 0x49, 0x45, 0x29, 0x20, 0x23, 0x30,
0x3a, 0x20, 0x57, 0x65, 0x64, 0x20, 0x4d, 0x61,
0x72, 0x20, 0x32, 0x31, 0x20, 0x31, 0x39, 0x3a,
0x30, 0x34, 0x3a, 0x33, 0x36, 0x20, 0x45, 0x44,
0x54, 0x20, 0x32, 0x30, 0x30, 0x37, 0x0a
};

o Add option -n. The -n option takes a count and breaks the line
after that many values have been printed. The line length is not
considered anymore.
o Add option -x. The -x option will cause the byte values to be
printed in hexadecimal instead of decimal.
o Bump WARNS to 6.
o Update the manpage accordingly.

Reindent and improve style(9) comformance.

Consistently use FBSDID

Modernize my email address

$Id$ -> $FreeBSD$

Remove unused variable.

Approved By: phk

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

This is a small little program used to execute a bad practice a clean way :-)
It will read a file on stdin and write it as decimal integers on stdout,
this is useful for embedding files in c-sources.

There are a few places where this is needed, and this is a better way than
the current practice of hand-editing the sources.

The command:

date | file2c 'const char date[] = {' ',0};'

will produce:

const char date[] = {
83,97,116,32,74,97,110,32,50,56,32,49,54,58,52,55,58,51,51,32,80,83,84,
32,49,57,57,53,10
,0};

The manual page is 2 lines longer than the source :-)