rcu: Docbook for rcu_head_init() and rcu_head_after_call_rcu()

This commit adds the missing asterisks required to make Sphinx pick up
the current header comments for these two functions.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
This commit is contained in:
Paul E. McKenney 2018-11-20 08:29:35 -08:00
commit 2aa5503026