binary support fixes

sys/init/2.vfs.lua

@@ -223,12 +223,12 @@ function fs.copy(s, t)
 		end
 
 	else
-		local sf = Util.readFile(s)
+		local sf = Util.readFile(s, 'rb')
 		if not sf then
 			error('No such file')
 		end
 
-		Util.writeFile(t, sf)
+		Util.writeFile(t, sf, 'wb')
 	end
 end
 
@@ -378,4 +378,4 @@ function fs.restore()
 	local native = fs.native
 	Util.clear(fs)
 	Util.merge(fs, native)
-end
+end