Complete _BSD_SOURCE / _SVID_source followup cleanup.
This patch completes the headers cleanup consequent on removal of
_BSD_SOURCE and _SVID_SOURCE (apart from any subsequent deprecations):
* #endif conditionals that referred to BSD or SVID are updated.
* Redundant __USE_* tests in cases involving __USE_MISC are removed.
This includes cases such as __USE_MISC || __USE_ISOC99, where
__USE_MISC is redundant (because __USE_MISC is only ever defined in
the default / _DEFAULT_SOURCE / _GNU_SOURCE case, when __USE_ISOC99
is also defined; the same applies to the non-XSI-extended POSIX
versions), and cases involving __USE_GNU, where __USE_GNU is
redundant (because if __USE_GNU is defined, so are the other __USE_*
macros). There may well be other cases of __USE_FOO || __USE_BAR
tests that could be simplified because one macro implies the other;
this patch only addresses cases involving __USE_MISC.
Tested x86_64.
* bits/fcntl.h [__USE_MISC]: Remove redundant conditionals.
* bits/sigaction.h [__USE_MISC]: Likewise.
* bits/waitstatus.h: Update #endif comments.
* ctype/ctype.h: Likewise.
* dirent/dirent.h: Likewise.
[__USE_MISC]: Remove redundant conditionals.
* grp/grp.h: Update #endif comments.
[__USE_GNU]: Remove redundant conditionals.
[__USE_MISC]: Likewise.
* inet/netinet/in.h [__USE_GNU]: Likewise.
* io/sys/stat.h [__USE_MISC]: Likewise.
* libio/bits/stdio-ldbl.h [__USE_MISC]: Likewise.
* libio/bits/stdio.h: Update #endif comments.
[__USE_MISC]: Remove redundant conditionals.
* libio/bits/stdio2.h [__USE_MISC]: Likewise.
* libio/stdio.h: Update #endif comments.
[__USE_MISC]: Remove redundant conditionals.
* math/bits/math-finite.h [__USE_MISC]: Likewise.
* math/bits/mathcalls.h [__USE_MISC]: Likewise.
* math/math.h: Update #else and #endif comments.
[__USE_MISC]: Remove redundant conditionals.
* misc/sys/uio.h: Update #endif comments.
* posix/bits/unistd.h [__USE_MISC]: Remove redundant conditionals.
* posix/glob.h [__USE_MISC]: Likewise.
* posix/sys/types.h: Update #endif comments.
[__USE_MISC]: Remove redundant conditionals.
* posix/sys/wait.h: Update #endif comments.
[__USE_MISC]: Remove redundant conditionals.
* posix/unistd.h: Update #endif comments.
[__USE_MISC]: Remove redundant conditionals.
* pwd/pwd.h [__USE_GNU]: Likewise.
[__USE_MISC]: Likewise.
* resolv/netdb.h [__USE_GNU]: Likewise.
* signal/signal.h: Update #endif comments.
[__USE_MISC]: Remove redundant conditionals.
* stdlib/stdlib.h: Update #else and #endif comments.
[__USE_MISC]: Remove redundant conditionals.
[__USE_GNU]: Likewise.
* string/bits/string2.h [__USE_MISC]: Likewise.
* string/string.h: Update #endif comments.
[__USE_MISC]: Remove redundant conditionals.
* sysdeps/m68k/m680x0/fpu/bits/mathinline.h [__USE_MISC]:
Likewise.
* sysdeps/mach/hurd/bits/fcntl.h [__USE_MISC]: Likewise.
* sysdeps/mach/hurd/bits/stat.h [__USE_MISC]: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h [__USE_MISC]:
Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/stat.h [__USE_MISC]:
Likewise.
* sysdeps/unix/sysv/linux/bits/fcntl-linux.h: Update #endif
comments.
[__USE_MISC]: Remove redundant conditionals.
* sysdeps/unix/sysv/linux/bits/in.h [__USE_GNU]: Likewise.
* sysdeps/unix/sysv/linux/bits/sigaction.h [__USE_MISC]: Likewise.
* sysdeps/unix/sysv/linux/bits/socket.h [__USE_GNU]: Likewise.
* sysdeps/unix/sysv/linux/bits/stat.h [__USE_MISC]: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/sigaction.h [__USE_MISC]:
Likewise.
* sysdeps/unix/sysv/linux/m68k/bits/stat.h [__USE_MISC]: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/sigaction.h [__USE_MISC]:
Likewise.
* sysdeps/unix/sysv/linux/mips/bits/stat.h [__USE_MISC]: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/stat.h [__USE_MISC]:
Likewise.
* sysdeps/unix/sysv/linux/s390/bits/sigaction.h [__USE_MISC]:
Likewise.
* sysdeps/unix/sysv/linux/s390/bits/stat.h [__USE_MISC]: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h [__USE_MISC]:
Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/stat.h [__USE_MISC]:
Likewise.
* sysdeps/unix/sysv/linux/x86/bits/stat.h [__USE_MISC]: Likewise.
* sysdeps/x86/bits/string.h: Update #endif comments.
* sysdeps/x86/fpu/bits/mathinline.h [__USE_MISC]: Remove redundant
conditionals.
* time/sys/time.h: Update #endif comments.
* time/time.h: Likewise.
[__USE_MISC]: Remove redundant conditionals.
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