fix JS conversion

Author: aviatesk

lib/misc/paths.js

@@ -10,8 +10,7 @@ export function home (...p) {
 }
 
 export function juliaHome (...p) {
-  let juliaHome = process.env.JULIA_HOME
-  if (!juliaHome) juliaHome = home('.julia')
+  const juliaHome = (process.env.JULIA_HOME || home('.julia'))
   return path.join(juliaHome, ...p)
 }
 
@@ -101,7 +100,7 @@ function atomProjectDir () {
     // it is valid
     try {
       fs.stat(dirs[0].path, (err, stats) => {
-        if (!err) return resolve(ws)
+        if (err) return resolve(ws)
         if (stats.isFile()) return resolve(path.dirname(dirs[0].path))
         return resolve(dirs[0].path)
       })