llgo.next: support build, run, cmptest

cmd/llgo.next/version_cmd.gox

@@ -1,10 +1,25 @@
+/*
+ * Copyright (c) 2025 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and limitations under the License.
+ */
+
 import (
 	"runtime"
 
 	"github.com/goplus/llgo/internal/env"
 )
 
-short "print LLGo version"
+short "Print LLGo version"
 
 run => {
 	echo "llgo ${env.version} ${runtime.GOOS}/${runtime.GOARCH}"