chore: remove -h from --host

Author: ulivz

packages/@vuepress/cli/index.js

@@ -40,9 +40,9 @@ exports.bootstrap = function ({
   cli
     .command('dev [targetDir]', 'start development server')
     .option('-p, --port [port]', 'use specified port (default: 8080)')
-    .option('-h, --host [host]', 'use specified host (default: 0.0.0.0)')
     .option('-t, --temp [temp]', 'set the directory of the temporary file')
     .option('-c, --cache [cache]', 'set the directory of cache')
+    .option('--host', 'use specified host (default: 0.0.0.0)')
     .option('--no-cache', 'clean the cache before build')
     .option('--debug', 'start development server in debug mode')
     .option('--silent', 'start development server in silent mode')