Update scripts

scripts/build.js

@@ -1,5 +1,5 @@
-const resolvePath = require('path').resolve
-const readFileSync = require('fs').readFileSync
+const fs = require('fs')
+const path = require('path')
 const execSync = require('child_process').execSync
 const inInstall = require('in-publish').inInstall
 const prettyBytes = require('pretty-bytes')
@@ -20,7 +20,7 @@ exec('npm run build-umd', webpackEnv)
 exec('npm run build-min', webpackEnv)
 
 const size = gzipSize.sync(
-  readFileSync(resolvePath(__dirname, '../umd/react-router.min.js'))
+  fs.readFileSync(path.resolve(__dirname, '../umd/react-router.min.js'))
 )
 
 console.log('\ngzipped, the UMD build is %s', prettyBytes(size))

scripts/release.js

@@ -1,15 +1,15 @@
-const resolvePath = require('path').resolve
-const readFileSync = require('fs').readFileSync
+const fs = require('fs')
+const path = require('path')
 const execSync = require('child_process').execSync
 const prompt = require('readline-sync').question
 
 const exec = (command) =>
   execSync(command, { stdio: 'inherit' })
 
 const getPackageVersion = () =>
-  JSON.parse(readFileSync(resolvePath(__dirname, '../package.json'))).version
+  JSON.parse(fs.readFileSync(path.resolve(__dirname, '../package.json'))).version
 
-if (process.cwd() !== resolvePath(__dirname, '..')) {
+if (process.cwd() !== path.resolve(__dirname, '..')) {
   console.error('The release script must be run from the repo root')
   process.exit(1)
 }