docs: ABI: fix an RST error in sysfs-bus-nvdimm

The literal blocks in this file lacked the necessary blank line at the top,
causing Sphinx to complain:

  /Documentation/ABI/testing/sysfs-bus-nvdimm:11: WARNING: Unexpected indentation.

Add the lines it's longing for and bring about a bit of warning peace.

Reported-by: Hu Haowen <src.res.211@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/ABI/testing/sysfs-bus-nvdimm b/Documentation/ABI/testing/sysfs-bus-nvdimm
index de8c5a5..64eb8f4 100644 (file)
--- a/Documentation/ABI/testing/sysfs-bus-nvdimm
+++ b/Documentation/ABI/testing/sysfs-bus-nvdimm
@@ -18,10 +18,12 @@ Description:        (RO) Attribute group to describe the magic bits
                Each attribute under this group defines a bit range of the
                perf_event_attr.config. Supported attribute is listed
                below::
+
                  event  = "config:0-4"  - event ID
 
                For example::
-                       ctl_res_cnt = "event=0x1"
+
+                 ctl_res_cnt = "event=0x1"
 
 What:           /sys/bus/event_source/devices/nmemX/events
 Date:           February 2022