Modifying the function test 'test_read_xyz_internal1()'.
This is Han's patch https://gna.org/task/download.php?file_id=13144 attached to the task http://gna.org/task/?7404.
The function 'test_read_xyz_internal1()' was modified so that it is more specific to the XYZ file added to relax and for the new XYZ reader.
Authored by: bugman 2011-06-09
Parent: [r12945]
Child: [r12947]
