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Usage on error should go to STDERR
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ponysay
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ponysay
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@ -30,7 +30,7 @@ do
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v) version; exit ;;
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h) usage; exit ;;
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f) pony=$OPTARG ;;
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\?) usage; exit 1 ;;
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\?) usage >&2; exit 1 ;;
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esac
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done
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