`printf`: Fix extra padding space and wrong position of `-` when padding #3624

Job	Run time
Style/format (ubuntu-latest, feat_os_unix)	18s
Style/lint (ubuntu-latest, feat_os_unix)	1m 3s
Style/lint (macos-latest, feat_os_macos)	1m 7s
Style/lint (windows-latest, feat_os_windows)	3m 22s
Style/spelling (ubuntu-latest, feat_os_unix)	53s
Style/toml	7s
	6m 50s

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