Switch to circleci.

.circleci/config.yml

@@ -0,0 +1,11 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/golang:1.10
+
+    working_directory: /go/src/github.com/alecthomas/kong
+    steps:
+      - checkout
+      - run: go get -v -t -d ./...
+      - run: go test -v ./...

README.md

@@ -1,4 +1,4 @@
-# Kong is a command-line parser for Go
+# Kong is a command-line parser for Go [![CircleCI](https://circleci.com/gh/alecthomas/kong.svg?style=svg&circle-token=477fecac758383bf281453187269b913130f17d2)](https://circleci.com/gh/alecthomas/kong)
 
 It parses a command-line into a struct. eg.
 

help.go

@@ -8,6 +8,8 @@ import (
 const defaultHelp = `{{- with .Application -}}
 usage: {{.Name}}
 
+{{.Help}}
+
 {{- end -}}
 `
 

kong.go

@@ -109,6 +109,7 @@ func (k *Kong) applyNode(scan *Scanner, node *Node, flags []*Flag) (command []st
 					}
 					args = append(args, token.Value)
 				}
+				// Note: tokens must be pushed in reverse order.
 				for i := range args {
 					scan.PushTyped(args[len(args)-1-i], PositionalArgumentToken)
 				}