function luaU.header(G)local z=1 return G.LUA_SIGNATURE..string.char(G.LUAC_VERSION,G.LUAC_FORMAT,z,4,4,4,8,0)end
------------------------------------------------------------------------
-- make header (from lundump.c)
-- returns the header string
------------------------------------------------------------------------
function luaU:header()
	local x = 1
	return self.LUA_SIGNATURE
		.. string.char(
			self.LUAC_VERSION,
			self.LUAC_FORMAT,
			x, -- endianness (1=little)
			4, -- sizeof(int)
			4, -- sizeof(size_t)
			4, -- sizeof(Instruction)
			8, -- sizeof(lua_Number)
			0
		) -- is lua_Number integral?
end
