feat: support use -h show detailed usage of command

KuangPF · haoqunjiang · commit 67cff9542eaa · 2019-01-13T01:17:06.000+08:00
diff --git a/packages/@vue/cli-service/lib/Service.js b/packages/@vue/cli-service/lib/Service.js
@@ -209,7 +209,7 @@ module.exports = class Service {
       error(`command "${name}" does not exist.`)
       process.exit(1)
     }
-    if (!command || args.help) {
+    if (!command || args.help || args.h) {
       command = this.commands.help
     } else {
       args._.shift() // remove command itself

Original file line number	Diff line number	Diff line change
`@@ -209,7 +209,7 @@ module.exports = class Service {`
`209`	`209`	error(`command "${name}" does not exist.`)
`210`	`210`	`process.exit(1)`
`211`	`211`	`}`
`212`		`- if (!command \|\| args.help) {`
	`212`	`+ if (!command \|\| args.help \|\| args.h) {`
`213`	`213`	`command = this.commands.help`
`214`	`214`	`} else {`
`215`	`215`	`args._.shift() // remove command itself`