version prints error

[crotwell]

Usually, a -version flag prints version and exists. But current ringserver also prints an error message that seems unneeded.

./ringserver -version 
Mon Dec 08 14:07:50 2025 - ringserver version: 4.1.2
Mon Dec 08 14:07:50 2025 - Error, ring directory must be specified

[crotwell]

Docs say -V is version, so perhaps it should just say "Unknown options".

(base) crotwell@owl-4 ringserver-4.1.2 % ./ringserver -V
ringserver version: 4.1.2
(base) crotwell@owl-4 ringserver-4.1.2 % ./ringserver --version
Mon Dec 08 14:16:00 2025 - Unknown option: --version
(base) crotwell@owl-4 ringserver-4.1.2 % ./ringserver -version 
Mon Dec 08 14:16:05 2025 - ringserver version: 4.1.2
Mon Dec 08 14:16:05 2025 - Error, ring directory must be specified