ipv4: fix checkpatch error "space prohibited"

Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/ipv4/inetpeer.c
Simple merge

diff --cc net/ipv4/netfilter/nf_nat_snmp_basic.c
Simple merge

diff --cc net/ipv4/syncookies.c
Simple merge

diff --cc net/ipv4/tcp_yeah.c
Simple merge