In ingo's new world order, we do not want multiple manual pages describing
the same thingies.  Therefore these "lists of functions" man pages can go
away.
Hurray!  I've wanted these pages to die for around 10 years!
ok ingo (and i think jmc)
improve warnings from rand_r(), rand(), and random()
It may take a few iterations to get the tone right.
previously discussed with millert
fix NAME;
no more ctype(3);
no more string(3);
Import new amd64 assembly versions of strchr/index, strrchr/rindex,
and strlen that provide a significantly faster performance than our
previous .c or .S implementations.  Based on NetBSD's code.

Tested with different amd64 CPUs.

ok deraadt@ mikeb@
LC_CTYPE has no effect on ctype(3), but on wctype(3); ok jmc@
put back some information what the character classes actually mean;
while here, remove the lie that regex(3) character classes would
depend on the locale;
ok jmc@