Reduce copying args when global

plugins/config/subcommands.go

@@ -150,7 +150,7 @@ func getEnvironment(appName string, merged bool) (env *Env) {
 
 //getCommonArgs extracts common positional args (appName and keys)
 func getCommonArgs(global bool, args []string) (appName string, keys []string) {
-	nextArg := 0
+	keys = args
 	if !global {
 		if len(args) > 0 {
 			appName = args[0]
@@ -158,9 +158,8 @@ func getCommonArgs(global bool, args []string) (appName string, keys []string) {
 		if appName == "" {
 			common.LogFail("Please specify an app or --global")
 		} else {
-			nextArg++
+			keys = args[1:]
 		}
 	}
-	keys = args[nextArg:]
 	return appName, keys
 }