CLI: lxc storage volume completion fixes and command description update
#13768
| Job | Run time |
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| 3m 17s | |
| 28s | |
| 30s | |
| 3m 23s | |
| 1m 5s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 8m 47s |