fix(deps): update dependency diff to v4 (#7198)

* fix(deps): update dependency diff to v4

* chore(deps): +diff@4.0.1

* fix: test for #7198

install/package.json

@@ -56,7 +56,7 @@
         "cropperjs": "^1.2.2",
         "csurf": "^1.9.0",
         "daemon": "^1.1.0",
-        "diff": "^3.4.0",
+        "diff": "^4.0.1",
         "express": "^4.16.2",
         "express-session": "^1.15.6",
         "express-useragent": "^1.0.12",

test/posts.js

@@ -464,7 +464,7 @@ describe('Post\'s', function () {
 		it('should load diffs and reconstruct post', function (done) {
 			posts.diffs.load(replyPid, 0, voterUid, function (err, data) {
 				assert.ifError(err);
-				assert.equal(data.content, 'A reply to edit\n');
+				assert.equal(data.content, 'A reply to edit');
 				done();
 			});
 		});