net: Remove trailing whitespace in tcp.h icmp.c syncookies.c

Remove trailing whitespace in tcp.h icmp.c syncookies.c

Signed-off-by: Kenjiro Nakayama <nakayamakenjiro@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc include/net/tcp.h
Simple merge

diff --cc net/ipv6/icmp.c
Simple merge

diff --cc net/ipv6/syncookies.c
Simple merge