Auto fix standard style voilations

lib/index.js

@@ -1,7 +1,7 @@
-var os = require('os')
-  , fs = require('fs')
-  , path = require('path')
-  , spawn = require('child_process').spawn
+var os = require('os'),
+  fs = require('fs'),
+  path = require('path'),
+  spawn = require('child_process').spawn
 
 var mkdirp = require('mkdirp')
 
@@ -9,32 +9,31 @@ var phantomscript = path.join(__dirname, 'phantomscript.js')
 
 module.exports = { process: processMermaid }
 
-function processMermaid(files, _options, _next) {
-  var options = _options || {}
-    , outputDir = options.outputDir || process.cwd()
-    , outputSuffix = options.outputSuffix || ''
-    , next = _next || function() {}
-    , phantomArgs = [
-          phantomscript
-        , outputDir
-        , options.png
-        , options.svg
-        , options.css
-        , options.sequenceConfig
-        , options.ganttConfig
-        , options.verbose
-        , options.width
-        , outputSuffix
-      ];
+function processMermaid (files, _options, _next) {
+  var options = _options || {},
+    outputDir = options.outputDir || process.cwd(),
+    outputSuffix = options.outputSuffix || '',
+    next = _next || function () {},
+    phantomArgs = [
+      phantomscript,
+      outputDir,
+      options.png,
+      options.svg,
+      options.css,
+      options.sequenceConfig,
+      options.ganttConfig,
+      options.verbose,
+      options.width,
+      outputSuffix
+    ]
 
-  files.forEach(function(file) {
+  files.forEach(function (file) {
     phantomArgs.push(file)
   })
 
-  mkdirp(outputDir, function(err) {
+  mkdirp(outputDir, function (err) {
     if (err) {
       throw err
-      return
     }
     phantom = spawn(options.phantomPath, phantomArgs)