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

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

Sync program's usage() with manpage's SYNOPSIS.

/*- or .\"- or #- to begin license clauses.

Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

Rename a local variable in order to avoid collision with standard 'log'
function.

Quiet warnings about copyright[].

Consistently use FBSDID

Back out part of previous commit: make -P the default again until I'm
convinced it's a good idea.

Make -L the default, allow both -L and -P to be specified (last one used
matters), fall back to -P mode if we can't get the logical directory.

o Remove old code from pwd(1); realpath(1) is now in its own directory.
o Fix some unordered includes in pwd(1).
o Connect realpath(1) to the build.

Use the getprogname(3) function instead of directly accessing
`__progname'.

Submitted by: dd

Add -L option (SUSv3) to pwd(1). Fix a bug, where realpath(1) would
complain about paths starting with `-', by not calling getopt(3).

Submitted by: Tim J. Robbins <tim@robbins.dropbear.id.au>
Obtained from: NetBSD (partially)
MFC after: 1 month

o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
they already are.

PATH_MAX in preference to MAXPATHLEN.

Silence WARNS=2 and BDECFLAGS on i386 and alpha.

MFC After: 1 week

Don't call err() with user data and without a format string

Let the pwd program double as realpath(1).

This lets you resolve pathnames to their underlying physical path:

critter# realpath /sys/kern/subr_disk.c
/freebsd/src/sys/kern/subr_disk.c

Update the pwd man-page slightly.

$Id$ -> $FreeBSD$

Indicate that the thing not found was not /bin/pwd but rather $CWD (or .).

Correct use of .Nm. Add rcsid.

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

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.

Merge Lite2 mods, cleanup man page, and -Wall cleaning.

Added $Id$

This commit was generated by cvs2svn to compensate for changes in r1556,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite bin Sources