fix(cli): remove shorthand of host option

Author: meteorlxy

Diff for: packages/@vuepress/cli/src/cli.ts

@@ -38,8 +38,8 @@ export const cli = (): void => {
     .command('dev [sourceDir]', 'Start development server')
     .option('-c, --config <config>', 'Set path to config file')
     .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 files')
+    .option('--host <host>', 'Use specified host (default: 0.0.0.0)')
     .option('--cache <cache>', 'Set the directory of the cache files')
     .option('--clean-cache', 'Clean the cache before dev')
     .option('--open', 'Open browser when ready')