[klibc] latest klibc for udev

[H. Peter Anvin]

Kay Sievers wrote:
> This patch make it possible to run udev with the latest klibc.
> 
> One patch for the udev/Makefile to match the moved include/ dir. Another
> one for klibc's string fuctions, that are causing segfaults:
> 
>   strncpy.c: the while() gets n == -1 and memset() dies
>   strncat.c: cat's only strlen(dest) count of chars from src to dest
> 

Thanks.  The definition of these functions is pretty bizarre; hence I added 
strlcpy() and strlcat() as well.

	-hpa