Locale kit appears to not free all memory on exit

[anevilyak]

Based on the output of the guarded heap, some locale-related memory doesn't appear to get cleaned up on exit. This could be static variables used for POSIX, as a simple test program such as:

int main(int, char **)
{
int x = 5;
return x;
}

linked to libroot exhibits the issue, which theoretically shouldn't actually initialize the Be API locale classes.