libmemunreachable: clang-format everything

clang-format -i --sort-includes $(find . -name "*.cpp" -o -name "*.h")

Test: builds
Change-Id: Ia8e0677fe7f3f26dddba3a851cd2dfab9f14e421
diff --git a/libmemunreachable/PtracerThread.h b/libmemunreachable/PtracerThread.h
index f88b599..ddf9026 100644
--- a/libmemunreachable/PtracerThread.h
+++ b/libmemunreachable/PtracerThread.h
@@ -36,6 +36,7 @@
   ~PtracerThread();
   bool Start();
   int Join();
+
  private:
   void SetTracer(pid_t);
   void ClearTracer();
@@ -47,4 +48,4 @@
   pid_t child_pid_;
 };
 
-#endif // LIBMEMUNREACHABLE_PTRACER_THREAD_H_
+#endif  // LIBMEMUNREACHABLE_PTRACER_THREAD_H_