dc: code shrink

function                                             old     new   delta
check_under                                           20      21      +1
print_no_pop                                          32      27      -5
pop                                                   24      18      -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 1/-11)             Total: -10 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
1 file changed