* libc/sys/linux/include/netdb.h, libc/sys/linux/net/getaddrinfo.c,
libc/sys/linux/net/getnameinfo.c: Add restrict keyword to getnameinfo()
and getaddrinfo() to increase standards compliance and match glibc.
* libc/include/string.h, libc/string/memccpy.c, libc/string/memcpy.c,
libc/string/stpcpy.c, libc/string/stpncpy.c, libc/string/strcat.c,
libc/string/strncat.c, libc/string/strncpy.c, libc/string/strtok.c,
libc/string/strtok_r.c, libc/string/strxfrm.c
libc/machine/microblaze/strcpy.c, libc/machine/xscale/memcpy.c,
libc/machine/cris/memcpy.c: Add __restrict to prototype to
increase standards compliance.