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/events/epoll_test.cc b/aos/events/epoll_test.cc
index 053a09b..b725747 100644
--- a/aos/events/epoll_test.cc
+++ b/aos/events/epoll_test.cc
@@ -129,9 +129,7 @@
   // epoll_ctl manpage, this should trigger an error).
   Pipe pipe;
   int number_errors = 0;
-  epoll_.OnError(pipe.write_fd(), [&]() {
-    ++number_errors;
-  });
+  epoll_.OnError(pipe.write_fd(), [&]() { ++number_errors; });
 
   // Sanity check that we *don't* get any errors before anything interesting has
   // happened.