* better disksize: ordered by major,minor and no `\n`
* nodediscover:`disksize` sent correctly: no need to `split`,`join`
* general sort with explicit key columns, fix search pattern
* dodiscovery: Fix bugs
* dodiscovery: Fix ShellCheck SC2007,SC2004
* dodiscovery: simpler kcmdline parsing, disksize as IEC binary prefix