Fix cpplint whitespace/comments issues

Change-Id: Iae286862c85fb8fd8901eae1204cd6d271d69496
diff --git a/dex2oat/dex2oat.cc b/dex2oat/dex2oat.cc
index 1a6a98a..f79ddb1 100644
--- a/dex2oat/dex2oat.cc
+++ b/dex2oat/dex2oat.cc
@@ -851,7 +851,7 @@
 
 #if ART_SMALL_MODE
   options.push_back(std::make_pair("-small", reinterpret_cast<void*>(NULL)));
-#endif // ART_SMALL_MODE
+#endif  // ART_SMALL_MODE
 
 
 #ifdef ART_SEA_IR_MODE
@@ -1049,7 +1049,7 @@
 
   // We wrote the oat file successfully, and want to keep it.
   LOG(INFO) << "Oat file written successfully (stripped): " << oat_location;
-#endif // ART_USE_PORTABLE_COMPILER
+#endif  // ART_USE_PORTABLE_COMPILER
 
   if (dump_timings && timings.GetTotalNs() > MsToNs(1000)) {
     LOG(INFO) << Dumpable<TimingLogger>(timings);
@@ -1058,7 +1058,7 @@
 }
 
 
-} // namespace art
+}  // namespace art
 
 int main(int argc, char** argv) {
   return art::dex2oat(argc, argv);