Update diff2html and wrap diff params

Author: rtfpessoa

Diff for: package.json

@@ -1,6 +1,6 @@
 {
   "name": "diff2html-cli",
-  "version": "1.4.6-beta1",
+  "version": "1.4.6-beta3",
   "homepage": "https://www.github.com/rtfpessoa/diff2html-cli",
   "description": "Fast Diff to colorized HTML",
   "keywords": [
@@ -46,16 +46,16 @@
   "main": "./src/main.js",
   "dependencies": {
     "copy-paste": "^1.1.4",
-    "diff2html": "2.0.0-beta1",
+    "diff2html": "^2.0.0-beta9",
     "extend": "^3.0.0",
-    "open": "^0.0.5",
+    "open": "0.0.5",
     "request": "^2.69.0",
-    "yargs": "^4.1.0"
+    "yargs": "^4.3.2"
   },
   "devDependencies": {
     "codacy-coverage": "^1.1.3",
     "istanbul": "^0.4.2",
-    "jscs": "^2.10.1",
+    "jscs": "^2.11.0",
     "mocha": "^2.4.5"
   },
   "license": "MIT",

Diff for: src/cli.js

@@ -45,7 +45,9 @@
   Diff2HtmlInterface.prototype._runGitDiff = function(gitArgsArr, callback) {
     var gitArgs;
     if (gitArgsArr.length && gitArgsArr[0]) {
-      gitArgs = gitArgsArr.join(' ');
+      gitArgs = gitArgsArr.map(function(arg) {
+        return "\"" + arg + "\""; // wrap parameters
+      }).join(' ');
     } else {
       gitArgs = '-M HEAD';
     }

Diff for: src/main.js

@@ -141,6 +141,7 @@ function onInput(err, input) {
   if (!input) {
     log.error('The input is empty. Try again.');
     yargs.showHelp('log');
+    return;
   }
 
   if (argv.diffy) {