[Release-1.30] Correct the k3s token command help #1977

Job	Run time
Build Go Tests	1m 23s
build / Build	6m 45s
Docker Tests (basics)	1m 14s
Docker Tests (bootstraptoken)	51s
E2E Tests (autoimport)	5m 38s
Docker Tests (cacerts)	49s
Docker Tests In GO (basics)	1m 7s
E2E Tests (startup)	9m 14s
Docker Tests (compat)	2m 8s
E2E Tests (s3)	7m 58s
Docker Tests In GO (bootstraptoken)	1m 2s
Docker Tests (lazypull)	53s
Docker Tests In GO (cacerts)	1m 15s
E2E Tests (btrfs)	4m 28s
Docker Tests (upgrade)	2m 24s
Docker Tests In GO (etcd)	1m 59s
E2E Tests (externalip)	4m 18s
E2E Tests (privateregistry)	5m 7s
Docker Tests In GO (lazypull)	1m 1s
E2E Tests (embeddedmirror)	5m 10s
Docker Tests In GO (skew)	1m 46s
Docker Tests In GO (upgrade)	1m 25s
E2E Tests (wasm)	4m 8s
	1h 12m 3s

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