If chown and chgrp can grow -d flags to suppress performing the
operation when it will have no effect (other than changing the
inode's ctime value) then chmod and chflags should also have -d
flags fo

If chown and chgrp can grow -d flags to suppress performing the
operation when it will have no effect (other than changing the
inode's ctime value) then chmod and chflags should also have -d
flags for the same purpose. Make it so.

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fix argument parsing.

add --reference=rfile

Use __dead

Document "-f". From Andreas Wiese in PR bin/35409, slightly modified.

Remove the \n and tabs from the __COPYRIGHT() strings.

Now that setmode() is fixed, handle errors with err instead errx.

Remove unused code left over from temporary printescaped functionality.
Noted by Jeff Ito in PR bin/23967.

Following private discussion with kleink@ and hubertf@ and public discussion
on tech-userlevel@, back out printescaped() functionality.
kleink: ``We sell rope.''

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22249, verified by myself.

As discusses a little while back on tech-userlevel:

If stdout is a tty, use vis(3) to print any filenames to prevent garbage
from being printed if the filename contains control- or other non-printab

As discusses a little while back on tech-userlevel:

If stdout is a tty, use vis(3) to print any filenames to prevent garbage
from being printed if the filename contains control- or other non-printable
characters.

While here, sprinkle some EXIT_FAILURE and NOTREACHED where appropriate.

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Align default behaviour of chmod, chgrp, chown, and chflags with symlink(7),
IEEE 1003.1-2001 (where applicable) and other systems, by follwoing symlinks
on the command line and changing their target

Align default behaviour of chmod, chgrp, chown, and chflags with symlink(7),
IEEE 1003.1-2001 (where applicable) and other systems, by follwoing symlinks
on the command line and changing their targets' modes/ownership/flags, rather
than ignoring them.

This fixes PR standards/563 (at last).

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Fix a comment: POSIX doesn't specify -h.

ANSIfy, use {s,g}etprogname and other KNF. Patch by Petri Koistinen.

Printing argv[0] on fts_open failure doesn't make sense. Just print
``fts_open'' instead.

Remove a hack to prevent unwanted gcc -Wuninitialized warning; it's now
unnecessary since the code path is simple enough after rev. 1.21.

do not pass user-supplied string alone, to errx?(). use "%s".
from openbsd.

Oops; remove unused variables.

Just use setmode(3); don't special-case numeric values.

Delint.

Delint.

Delint.

Add -h to usage.

Change noop option -h to do the real work. Now mode of symbolic link
is changed if -h option is given.

Don't pass the pathname itself as format string of warn(). Instead,
use "%s".