[PATCH -next] Documentation: admin-guide: sysctl/kernel: fix headings format and underlines

[Randy Dunlap]

From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Fix underline length warnings and drop the ending semi-colon from the
title so that they match other title lines.

linux-next-20200420/Documentation/admin-guide/sysctl/kernel.rst:281: WARNING: Title underline too short.

hung_task_all_cpu_backtrace:
================

linux-next-20200420/Documentation/admin-guide/sysctl/kernel.rst:564: WARNING: Title underline too short.

oops_all_cpu_backtrace:
================
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
---
 Documentation/admin-guide/sysctl/kernel.rst |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- linux-next-20200420.orig/Documentation/admin-guide/sysctl/kernel.rst
+++ linux-next-20200420/Documentation/admin-guide/sysctl/kernel.rst
@@ -277,8 +277,8 @@ Path for the hotplug policy agent.
 Default value is "``/sbin/hotplug``".
 
 
-hung_task_all_cpu_backtrace:
-================
+hung_task_all_cpu_backtrace
+===========================
 
 If this option is set, the kernel will send an NMI to all CPUs to dump
 their backtraces when a hung task is detected. This file shows up if
@@ -560,8 +560,8 @@ rate for each task.
 scanned for a given scan.
 
 
-oops_all_cpu_backtrace:
-================
+oops_all_cpu_backtrace
+======================
 
 If this option is set, the kernel will send an NMI to all CPUs to dump
 their backtraces when an oops event occurs. It should be used as a last