static_lease_nip and lease pointer are canculated in the caller,
no need to calculate them again. lease_time_sec calculation
is also redundant: it is assigned to later, w/o being used
in between.
function old new delta
udhcpd_main 1956 1925 -31
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>