Clang-format aos

It has drifted...  Clean it up a bit.

Change-Id: I2fe31a2187b4f690634ae6942786575db20192af
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/aos/util/top.cc b/aos/util/top.cc
index 22d67c8..9a6bbd0 100644
--- a/aos/util/top.cc
+++ b/aos/util/top.cc
@@ -153,7 +153,7 @@
   std::set<pid_t> pids = pids_to_track_;
   // Ensure that we check on the status of every process that we are already
   // tracking.
-  for (const auto & reading : readings_) {
+  for (const auto &reading : readings_) {
     pids.insert(reading.first);
   }
   if (track_all_) {