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MPI_File_preallocate(3) on Linux

The text 15ce05deb82f, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.

Preallocates storage space for a file

MPI_File_preallocate(3) on Linux now