Fix print_help for printing nothing

This commit is contained in:
Zhihao Yuan 2019-11-22 15:33:15 -06:00
parent 9cac1d0fed
commit 36003197c7
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@ -515,8 +515,8 @@ public:
}
// Format help message
auto help() const -> std::ostringstream {
std::ostringstream out;
auto help() const -> std::stringstream {
std::stringstream out;
out << *this;
return out;
}