srcu: Fix s/is/if/ typo in srcu_node comment

This commit fixed a typo in the srcu_node structure's ->srcu_have_cbs
comment.  While in the area, redo a couple of comments to take advantage
of 100-character line lengths.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2022-01-20 13:16:18 -08:00
commit 95ebe80d99