[Dcmlib] TestWriteSimple

[Mathieu Malaterre]

Everything's ok:
http://public.kitware.com/GDCM/Testing/Sites/CHIRON.kitwarein/GDCM-Win32-bcc5.5/20051020-0820-Continuous/Test.html

TestWriteSimple's failing:
http://public.kitware.com/GDCM/Testing/Sites/CHIRON.kitwarein/GDCM-Win32-bcc5.5/20051020-0840-Continuous/Test.html

Changes were:
http://public.kitware.com/GDCM/Testing/Sites/CHIRON.kitwarein/GDCM-Win32-bcc5.5/20051020-0840-Continuous/Update.html

Please JP review your changes...

Thanks
Mathieu