Example where it wasn't working:
awk 'BEGIN { printf "qwe %s rty %c uio\n", "a", 0, "c" }'
- the NUL printing in %c caused premature stop of printing.
function old new delta
awk_printf 593 596 +3
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>