better fix libbb than libc6-dev

[Gaudenz Steinlin <gaudenz@soziologie.ch>]

reassign 194631 busybox-cvs
thanks

After some discussion with Daniel Jacobowitz I think it's better to 
solve this problem in busybox-cvs. He thinks, that syscall() should be 
used in libbb instead of syscall4() and syscall5(). Which seems 
plausible to me, because it seems to be more portable this way.

- gaudenz