mgr/PyFormatter.h: add necessary #include

this header uses `std::string`, `std::string_view` and
`std::stringstream`, so it should include the corresponding headers.

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/mgr/PyFormatter.h b/src/mgr/PyFormatter.h
index 58fead174ec50d2f93308bbf25aa7895ae48f728..e30ae9f054ab372fa3dd50aefaa2940f13b05501 100644 (file)
--- a/src/mgr/PyFormatter.h
+++ b/src/mgr/PyFormatter.h
@@ -21,6 +21,9 @@
 #include "PythonCompat.h"
 
 #include <stack>
+#include <string>
+#include <string_view>
+#include <sstream>
 #include <memory>
 #include <list>