cmd/list: add --desc flag #39978

Job	Run time
syntax	1m 0s
formula audit	5m 49s
tap syntax	6m 41s
update-test (macOS)	27s
tests (generic OS)	30m 16s
update-test (Linux)	22s
bundle and services (Linux)	3m 12s
analytics (Linux)	33s
test-bot (Linux arm64)	2m 34s
tests (online)	30m 15s
bundle and services (macOS)	2m 51s
vendored gems	49s
test-bot (Linux Homebrew glibc)	6m 10s
test-bot (macOS x86_64)	5m 59s
test-bot (macOS arm64)	3m 24s
tests (macOS)	30m 16s
analytics (macOS)	38s
cask audit	1m 58s
test-bot (Linux x86_64)	2m 44s
tests (Linux)	30m 15s
	2h 46m 13s

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