[PATGCH -next] LSM: SafeSetID: fix underline length warning

[Randy Dunlap]

From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Fix documentation build warning:

Documentation/admin-guide/LSM/SafeSetID.rst:110: WARNING: Title underline too short.
Note on GID policies and setgroups()
==================

Fixes: 02e316b088df ("LSM: SafeSetID: Add GID security policy handling")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Thomas Cedeno <thomascedeno@xxxxxxxxxx>
Cc: Micah Morton <mortonm@xxxxxxxxxxxx>
---
 Documentation/admin-guide/LSM/SafeSetID.rst |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20200821.orig/Documentation/admin-guide/LSM/SafeSetID.rst
+++ linux-next-20200821/Documentation/admin-guide/LSM/SafeSetID.rst
@@ -107,7 +107,7 @@ for a UID/GID will prevent that UID/GID
 privileges, such as allowing a user to set up user namespace UID/GID mappings.
 
 Note on GID policies and setgroups()
-==================
+====================================
 In v5.9 we are adding support for limiting CAP_SETGID privileges as was done
 previously for CAP_SETUID. However, for compatibility with common sandboxing
 related code conventions in userspace, we currently allow arbitrary