PX_read_primary_index(3) on Linux
The text 3ba2c2c4408c, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
Reads the primary index into an internal buffer