rule-indent: fix potential forEach loop bug

Author: mishanga

lib/options/rule-indent.js

@@ -23,12 +23,13 @@ module.exports = {
     process: function(nodeType, node, level) {
         // increasing indent level
         if (nodeType === 'block') {
-            var value = '\n' + new Array(level + 2).join(this._value);
             if (node[0][0] !== 's') {
                 node.unshift(['s', '']);
             }
-            node.forEach(function(nodeItem, i) {
+            for (var i = 0; i < node.length; i++) {
+                var nodeItem = node[i];
                 if (nodeItem[0] === 'declaration') {
+                    var value = '\n' + new Array(level + 2).join(this._value);
                     var space = node[i - 1];
                     var tail;
 
@@ -45,7 +46,7 @@ module.exports = {
                     // '\n \n ' => '\n \n\t'
                     space[1] = space[1].replace(/(\n)?([\t ]+)?$/, value);
                 }
-            });
+            };
         }
     }