clang-format: update latest spec and reformat

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

Change-Id: Ic2bc1d98d8ad469a3477f9059ec890fc8339907d
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/src/metrics/collection_function.hpp b/src/metrics/collection_function.hpp
index 610f015..fdeafc3 100644
--- a/src/metrics/collection_function.hpp
+++ b/src/metrics/collection_function.hpp
@@ -20,9 +20,8 @@
 
     virtual double calculate(const std::vector<ReadingItem>& readings,
                              Milliseconds timestamp) const = 0;
-    virtual double
-        calculateForStartupInterval(std::vector<ReadingItem>& readings,
-                                    Milliseconds timestamp) const = 0;
+    virtual double calculateForStartupInterval(
+        std::vector<ReadingItem>& readings, Milliseconds timestamp) const = 0;
 };
 
 std::shared_ptr<CollectionFunction> makeCollectionFunction(OperationType);