busybox

	* uniq.c: remove unneeded include and use short boilerplate.
	* coreutils.h: remove prototype of non-existing xgetoptfile_sort_uniq
	and add boilerplate.
	* networking/{ipaddr,ip,iplink,iproute,iptunnel}.c: touch includes
	and use short boilerplate.
	* libiproute/iproute.c: rename round to avoid clashes with older
	SuSE gcc and use short boilerplate.