private String paramName(CliOption option) {
		String[] possibleValues = option.key();
		for (String s : possibleValues) {
			if (!"".equals(s)) {
				return s;
			}
		}
		throw new IllegalStateException("Option should have a non empty key: " + option.help());
	}
Return an asciidoc passthrough version of some text, in case the original text contains characters
that would be (mis)interpreted by asciidoc.
documentation-toolchain/src/test/java/org/springframework/xd/documentation/ShellReferenceDoc.java