znetconf: show help and version without ccwgroup driver loaded
znetconf: show help and version without ccwgroup driver loaded

When directory $SYSFSDIR/bus/ccwgroup does not exist znetconf issues an
error message and terminates. Its not even possible to get the output of
--help or --version. Fix that by moving the responsible check behind the
parameter evaluation.

Signed-off-by: Karsten Graul <a0366c695f29b1768a1c3b9cb60fe3d35568aaa5@linux.ibm.com>
Signed-off-by: Jan Höppner <96138615ab4af0813785fa10d283f3d37eca3b78@linux.ibm.com>

ibm-s390-tools/s390-tools,ibm-s390-tools/s390-tools,ibm-s390-tools/s390-tools,ibm-s390-tools/s390-tools