busybox

wc: fix a hang gue to isprint(EOF)

The new isprint replacement macro returns TRUE for isprint(EOF), so the
read loop never returns. Moved the check for EOF immediately after the
read.

Signed-off-by: Dan Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>