[TIPC]: Cosmetic cleanup of print buffer code

This patch contains changes to make TIPC's print buffer code
conform more closely to Linux kernel coding guidelines.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/tipc/core.h
Simple merge

diff --cc net/tipc/dbg.c
Simple merge