Avoid duplicate Cobra CLI error output in generated commands #36768

Job	Run time
setup-environment	18s
govulncheck	3m 14s
unittest-matrix (ubuntu-latest, oldstable)	1m 32s
test-coverage	7m 32s
lint	15m 10s
unittest-matrix (ubuntu-latest, stable)	1m 26s
checks	2m 23s
cross-build-collector (linux, 386)	1m 2s
cross-build-collector (darwin, arm64)	54s
cross-build-collector (windows, amd64)	57s
cross-build-collector (linux, amd64)	56s
cross-build-collector (darwin, amd64)	51s
cross-build-collector (linux, ppc64le)	1m 1s
cross-build-collector (windows, 386)	54s
cross-build-collector (linux, arm, 7)	54s
cross-build-collector (linux, arm64)	55s
cross-build-collector (windows, arm64)	53s
cross-build-collector (aix, ppc64)	58s
cross-build-collector (linux, s390x)	58s
cross-build-collector (linux, riscv64)	56s
unittest	4s
	43m 48s

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