update_engine: Clean up angle brackets in template types.

C++11 no longer has the angle bracket pitfall in template types.

BUG=None
TEST=`FEATURES=test emerge-$BOARD update_engine`

Change-Id: I0168b9f208ad8e62ae614b8a3b8bcf31c58fa9f2
Reviewed-on: https://chromium-review.googlesource.com/219203
Commit-Queue: Ben Chan <[email protected]>
Tested-by: Ben Chan <[email protected]>
Reviewed-by: Alex Vakulenko <[email protected]>
diff --git a/payload_generator/tarjan.h b/payload_generator/tarjan.h
index 48ec9a2..e3dc97f 100644
--- a/payload_generator/tarjan.h
+++ b/payload_generator/tarjan.h
@@ -32,7 +32,7 @@
   Vertex::Index index_;
   Vertex::Index required_vertex_;
   std::vector<Vertex::Index> stack_;
-  std::vector<std::vector<Vertex::Index> > components_;
+  std::vector<std::vector<Vertex::Index>> components_;
 };
 
 }  // namespace chromeos_update_engine