Move and rename linter-eslint’s eslint lookup

Bringing it out into the function’s closure will avoid repeated syscalls.

Author: Ian VanSchooten

lib/es5-helpers.js

@@ -6,9 +6,9 @@ const FS = require('fs')
 const find = require('atom-linter').findFile
 
 let prefixPath = null
+const atomEslintPath = Path.join(FS.realpathSync(Path.join(__dirname, '..')), 'node_modules', 'eslint')
 
 function findEslintDir(params) {
-  const eslintPathLocal = Path.join(FS.realpathSync(Path.join(__dirname, '..')), 'node_modules', 'eslint')
   const modulesPath = find(params.fileDir, 'node_modules')
   let eslintNewPath = null
 
@@ -30,7 +30,7 @@ function findEslintDir(params) {
     try {
       FS.accessSync(eslintNewPath = Path.join(modulesPath, 'eslint'), FS.R_OK)
     } catch (_) {
-      eslintNewPath = eslintPathLocal
+      eslintNewPath = atomEslintPath
     }
   }