kou commented on code in PR #47227:
URL: https://github.com/apache/arrow/pull/47227#discussion_r2262362893
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cpp/examples/arrow/execution_plan_documentation_examples.cc:
##########
@@ -827,12 +827,17 @@ enum ExampleMode {
int main(int argc, char** argv) {
if (argc < 3) {
// Fake success for CI purposes.
+ std::cout << "Usage: " << argv[0] << " base_save_path mode" << std::endl;
Review Comment:
```suggestion
std::cout << "Usage: " << argv[0] << " base_save_path mode" << std::endl;
// Fake success for CI purposes.
```
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