https wget will not display correct error message if /dev/null does not exist

[tbodt]

busybox/networking/wget.c

Lines 718 to 719 in a07fead

	xmove_fd(2, 3);
	xopen("/dev/null", O_RDWR);

If an error occurs opening /dev/null on the second line, it will be written to stderr, but the first line just moved stderr to fd 3, so no message will appear.