update_engine: Run clang-format on ./ (root directory)

BUG=none
TEST=unittest

Change-Id: Ibd075dc7ea9a18e798f612e35725f1c83c112809
Reviewed-on: https://chromium-review.googlesource.com/1409708
Commit-Ready: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Sen Jiang <senj@chromium.org>
diff --git a/connection_manager.cc b/connection_manager.cc
index a048f5f..7263a74 100644
--- a/connection_manager.cc
+++ b/connection_manager.cc
@@ -46,7 +46,7 @@
   return std::unique_ptr<ConnectionManagerInterface>(
       new ConnectionManager(new ShillProxy(), system_state));
 }
-}
+}  // namespace connection_manager
 
 ConnectionManager::ConnectionManager(ShillProxyInterface* shill_proxy,
                                      SystemState* system_state)