This file is indexed.

/usr/lib/mime/packages/dia-gnome is in dia-gnome 0.97.2-15ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
application/x-dia-diagram; dia '%s'; description="DIA diagram"; test=test -n "$DISPLAY"; nametemplate=%s.dia