fix rustfmt on liballoc_system
fix rustfmt on liballoc_system

stryan/redox,tedsta/redox,nounoursheureux/redox,nxnfufunezn/redox,tedsta/redox,stryan/redox,achanda/redox,bheesham/redox,imp/redox,vvlevchenko/redox,nounoursheureux/redox,achanda/redox,vvlevchenko/redox,bheesham/redox,bheesham/redox,tedsta/redox,stryan/redox,bheesham/redox,achanda/redox,imp/redox,imp/redox,tedsta/redox,nxnfufunezn/redox,stryan/redox,vvlevchenko/redox,nounoursheureux/redox,nxnfufunezn/redox