Normalise linebreaks before escaping them

lib/_tools.js

@@ -28,13 +28,9 @@ module.exports.formatDate = function formatDate(d, dateonly, floating) {
 };
 
 module.exports.escape = function escape(str) {
-    return str.replace(/[\\;,\n"]/g, function(match) {
-        if(match === '\n') {
-            return '\\n';
-        }
-
+    return str.replace(/[\\;,"]/g, function(match) {
         return '\\' + match;
-    });
+    }).replace(/(?:\r\n|\r|\n)/g, '\\n');
 };
 
 module.exports.duration = function duration(seconds) {