added sys/wait.h
added sys/wait.h

nsdown/vpn-ws,XHidamariSketchX/vpn-ws,unbit/vpn-ws,unbit/vpn-ws,unbit/vpn-ws,don-johnny/vpn-ws,don-johnny/vpn-ws,faint32/vpn-ws,XHidamariSketchX/vpn-ws,faint32/vpn-ws,faint32/vpn-ws,XHidamariSketchX/vpn-ws,nsdown/vpn-ws,nsdown/vpn-ws,don-johnny/vpn-ws