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Both iucvconn and iucvtty write output for --help to stderr. To be consistent with other s390-tools and GNU coding guide lines, fix this by using stdout for tool-generated usage help. Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>