fio docs corrections

Correct fio mailing list address and unit of time for cpuchunks.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/REPORTING-BUGS b/REPORTING-BUGS
index dab2ef4..ded68ab 100644
--- a/REPORTING-BUGS
+++ b/REPORTING-BUGS
@@ -2,7 +2,7 @@
 ---------------
 
 If you notice anything that seems like a fio bug, please do send email
-to the list (fio-devel@kernel.dk, see README) about it. You'll need
+to the list (fio@vger.kernel.org, see README) about it. You'll need
 to report at least:
 
 1) A description of what you think the bug is