nodeset testcase: Allow dash in hostnames

[Obihoernchen]

Before:

------START::nodeset_stat::Time:Sun Apr 14 17:09:00 2024------

RUN:nodeset xcat01-cn stat [Sun Apr 14 17:09:00 2024]
ElapsedTime:0 sec
RETURN rc = 0
OUTPUT:
xcat01-cn: netboot alma8.6-x86_64-compute
CHECK:rc == 0	[Pass]
CHECK:output =~ xcat01-cn:\s+[discover|boot|reboot|install|netboot|shell|standby]	[Pass]
 
RUN:nodeset xcat01-cn stat -V [Sun Apr 14 17:09:00 2024]
ElapsedTime:0 sec
RETURN rc = 0
OUTPUT:
xcat01-cn: [xcat01-mn]: netboot alma8.6-x86_64-compute
CHECK:rc == 0	[Pass]
CHECK:output =~ xcat01-cn:\s+\[\w+\]:\s+[discover|boot|reboot|install|netboot|shell|standby]	[Failed]
 
------END::nodeset_stat::Failed::Time:Sun Apr 14 17:09:00 2024 ::Duration::0 sec------
------Total: 1 , Failed: 1------

After:

------START::nodeset_stat::Time:Sun Apr 14 17:17:09 2024------

RUN:nodeset xcat01-cn stat [Sun Apr 14 17:17:09 2024]
ElapsedTime:0 sec
RETURN rc = 0
OUTPUT:
xcat01-cn: netboot alma8.6-x86_64-compute
CHECK:rc == 0	[Pass]
CHECK:output =~ xcat01-cn:\s+[discover|boot|reboot|install|netboot|shell|standby]	[Pass]
 
RUN:nodeset xcat01-cn stat -V [Sun Apr 14 17:17:09 2024]
ElapsedTime:0 sec
RETURN rc = 0
OUTPUT:
xcat01-cn: [xcat01-mn]: netboot alma8.6-x86_64-compute
CHECK:rc == 0	[Pass]
CHECK:output =~ xcat01-cn:\s+\[[a-zA-Z0-9\-]+\]:\s+[discover|boot|reboot|install|netboot|shell|standby]	[Pass]
 
------END::nodeset_stat::Passed::Time:Sun Apr 14 17:17:09 2024 ::Duration::0 sec------