clang-format: update latest spec and reformat

Copy the latest format file from the docs repository and apply.

Change-Id: Iac96affe709a51dd865117d006cb033cf5c624b1
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/extensions/openpower-pels/user_header.hpp b/extensions/openpower-pels/user_header.hpp
index 5bfe6d3..4d3e7cf 100644
--- a/extensions/openpower-pels/user_header.hpp
+++ b/extensions/openpower-pels/user_header.hpp
@@ -253,9 +253,9 @@
      *                         structures to find an entry in.
      * @param[in] dataIface - The DataInterface object
      */
-    std::optional<uint8_t>
-        getSeverity(const std::vector<message::RegistrySeverity>& severities,
-                    const DataInterfaceBase& dataIface) const;
+    std::optional<uint8_t> getSeverity(
+        const std::vector<message::RegistrySeverity>& severities,
+        const DataInterfaceBase& dataIface) const;
 
     /**
      * @brief The subsystem associated with the event.