buffet: Cleaned up the remaining linter warnings

Fixed the remaining warnings from cpplint. So now every file
in platform2/buffet conforms to the default linter settings.

BUG=None
TEST=Code still compiles and unit tests pass

Change-Id: I094d06789590c6c76679c1e1c758525898e86923
Reviewed-on: https://chromium-review.googlesource.com/199414
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Commit-Queue: Alex Vakulenko <avakulenko@chromium.org>
diff --git a/buffet/buffet_client.cc b/buffet/buffet_client.cc
index cec73e1..34eb89f 100644
--- a/buffet/buffet_client.cc
+++ b/buffet/buffet_client.cc
@@ -19,7 +19,7 @@
 #include "buffet/dbus_constants.h"
 #include "buffet/data_encoding.h"
 
-using namespace buffet::dbus_constants;
+using namespace buffet::dbus_constants;  // NOLINT(build/namespaces)
 
 namespace {
 static const int default_timeout_ms = 1000;
@@ -228,10 +228,10 @@
 
  private:
   scoped_refptr<dbus::Bus> bus_;
-  dbus::ObjectProxy* manager_proxy_{nullptr};
+  dbus::ObjectProxy* manager_proxy_{nullptr};  // NOLINT - initializer list
 };
 
-} // namespace
+}  // namespace
 
 int main(int argc, char** argv) {
   CommandLine::Init(argc, argv);