pkgkde-mark-qt5-private-symbols(1) on Linux
The text 207386ce7476, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
a helper tool to mark private symbols in Qt symbols files