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

Fix build of libc.so after r232620. This caused a duplicate definition
of __getCurrentRuneLocale().

Pointy hat to: me

Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.

Reviewed by: ache and wollman (long ago)

isctype.c:
o The tolower() and toupper() functions duplicated too much code
and were out of date (surprise). This didn't matter because
it was difficult to call them.
o Change formatting to be more like that in <ctype.h> (with
extra parentheses as in the macros). Perhaps this file should
be machine generated or everything should be handled like
__tolower() so that no code is repeated.

nomacros.c:
o Instead of looking at _USE_CTYPE_INLINE_ to see what <ctype.h>
has done, set _EXTERNALIZE_CTYPE_INLINES_ to tell <ctype.h>
what to do, so that we don't have anything left to do. Note
that code is now generated even if inlines are used by default.
This allows users to switch to non-inline versions.

Sync with ctype.h (remove EOF handling)

Sync with ctype.h (EOF, sign extention fixes)

Make not-so-space-eaten locale version:
split modules to bring only neccessary functions,
eliminate sprintf, make reduced startup_locale version.