clang-format: update latest spec and reformat

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

Change-Id: I295ded87d74037b2f4a6c4b85d82af20d49ae4a7
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/users.hpp b/users.hpp
index 0f3065e..3e0a891 100644
--- a/users.hpp
+++ b/users.hpp
@@ -84,8 +84,8 @@
      *
      *  @param[in] value - User groups
      */
-    std::vector<std::string>
-        userGroups(std::vector<std::string> value) override;
+    std::vector<std::string> userGroups(
+        std::vector<std::string> value) override;
 
     /** @brief list user groups
      *