Update manpage and completions. #30352

Job	Run time
syntax	51s
formula audit	7m 15s
cask audit	3m 14s
test default formula (Ubuntu 22.04)	4m 16s
tap syntax	4m 49s
test default formula (Ubuntu 20.04)	5m 59s
tests (online)	8m 37s
update-test (Ubuntu 22.04)	29s
test default formula (macOS 13 x86_64)	2m 47s
tests (generic OS)	5m 44s
vendored gems	46s
test default formula (macOS 14 arm64)	1m 16s
update-test (macOS)	24s
tests (Ubuntu 22.04)	6m 26s
tests (Ubuntu 20.04)	7m 18s
tests (macOS 13 x86_64)	11m 12s
tests (macOS 14 arm64)	4m 48s
	1h 16m 11s

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