MPI_File_get_info(3) on Linux
The text 50d7de091c78, as Debian 13 (Trixie), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
Returns the hints for a file that are actually being used by MPI