Enhance the 'chzdev' tool by introducing a new option to discern
files created by 'zdev-tools.' The command usage is as follows:
$ chzdev --is-owner <file-name>
When executed, the command will return an exit code of 0 for all
files generated by zdev-tools. In the case of an unknown file, the
tool will return the exit code 'EXIT_UNKNOWN_FILE i.e 33.'
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>