Update git.js

Author: duizendnegen

lib/scm-data-generators/git.js

@@ -13,11 +13,11 @@ module.exports = CoreObject.extend({
     var _this = this;
     return new RSVP.Promise(function(resolve/*, reject */) {
       simpleGit(_this.path).log(function(err, log) {
-        if(!log) {
+        var info = log.latest;
+        
+        if(!info) {
           resolve();
         } else {
-          var info = log.latest;
-          
           resolve({
             sha: info.hash.replace("'",''),
             email: info.author_email.replace("'",''),