Removed "<:" bigram confusing gcc 4.4
Resulted in error:
```test/cpp/end2end/end2end_test.cc:120: error: ‘<::’ cannot begin a template-argument list
test/cpp/end2end/end2end_test.cc:120: note: ‘<:’ is an alternate spelling for ‘[’. Insert whitespace between ‘<’ and ‘::’
test/cpp/end2end/end2end_test.cc:120: note: (if you use ‘-fpermissive’ G++ will accept your code)
make: *** [objs/opt/test/cpp/end2end/end2end_test.o] Error 1```
diff --git a/test/cpp/end2end/end2end_test.cc b/test/cpp/end2end/end2end_test.cc
index 5f0749d..3766981 100644
--- a/test/cpp/end2end/end2end_test.cc
+++ b/test/cpp/end2end/end2end_test.cc
@@ -117,7 +117,7 @@
}
private:
- std::unique_ptr<::grpc::cpp::test::util::TestService::Stub> stub_;
+ std::unique_ptr< ::grpc::cpp::test::util::TestService::Stub> stub_;
};
class TestServiceImpl : public ::grpc::cpp::test::util::TestService::Service {