Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

getcwd(3): Clarify that EACCES may or may not be checked.

POSIX permits but does not require checking access on the current and parent
directories.

Because various programs do not like it if getcwd(3) fails, it seems best
to avoid checking access as much as possible. There are various reports in
GNATS about this (search for getcwd).

Our getcwd(3) implementation first queries the kernel for the pathname
directly, which does not check any permissions but sometimes fails, and then
falls back to reading all parent directories for the names.

PR: standards/44425
MFC after: 2 weeks

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

mdoc(7): Use the new feature of the .In macro.

mdoc(7) police: Use the new .In macro for #include statements.

mdoc(7) police: removed HISTORY info from the .Os call.

getcwd(3) is defined by POSIX, not ISO C.

Approved by: bde

.St -ansiC -> .St -isoC

mdoc(7) police: split punctuation characters + misc fixes.

Whitespace only change: trim trailing whitespace.

Use `Er' variable to define first column width in ERRORS section.

Introduce ".Lb" macro to libc manpages.

More libraries manpages updates following.

$Id$ -> $FreeBSD$

Fixed spelling of EACCES.

Fixed various problems: typos, grammer, missing include files
wrong function type declarations, and wrong argument type
declarations.

stdio.h --> unistd.h

Backed out Keith Bostic's getcwd/$PWD hack. It is causing things to break
all over the place.

Document the getenv(PWD) feature.

This commit was generated by cvs2svn to compensate for changes in r1573,
which included commits to RCS files with non-trunk default branches.

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