added whole system from ola4doc

sys/node_modules/indent-string/index.js

@@ -0,0 +1,20 @@
+'use strict';
+var repeating = require('repeating');
+
+module.exports = function (str, indent, count) {
+	if (typeof str !== 'string' || typeof indent !== 'string') {
+		throw new TypeError('`string` and `indent` should be strings');
+	}
+
+	if (count != null && typeof count !== 'number') {
+		throw new TypeError('`count` should be a number');
+	}
+
+	if (count === 0) {
+		return str;
+	}
+
+	indent = count > 1 ? repeating(indent, count) : indent;
+
+	return str.replace(/^(?!\s*$)/mg, indent);
+};