sexpect: updated per OpenWrt's common practice

- removed extra white spaces in Makefile
- changed license from GPL-3.0 to GPL-3.0-only
- added test.sh

Signed-off-by: Clark Wang <dearvoid@gmail.com>
(cherry picked from commit 17d4d05fd5)

utils/sexpect/Makefile

@@ -1,25 +1,25 @@
 
 include $(TOPDIR)/rules.mk
 
-PKG_NAME    := sexpect
-PKG_VERSION := 2.3.8
-PKG_RELEASE := $(AUTORELEASE)
+PKG_NAME:=sexpect
+PKG_VERSION:=2.3.8
+PKG_RELEASE:=$(AUTORELEASE)
 
-PKG_SOURCE     := $(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL := https://codeload.github.com/clarkwang/sexpect/tar.gz/v$(PKG_VERSION)?
-PKG_HASH       := a586283210a76f03b9cce9f09aac28977d6fc3e314355e22c30d6f42524d9a42
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://codeload.github.com/clarkwang/sexpect/tar.gz/v$(PKG_VERSION)?
+PKG_HASH:=a586283210a76f03b9cce9f09aac28977d6fc3e314355e22c30d6f42524d9a42
 
-PKG_MAINTAINER    := Clark Wang <dearvoid@gmail.com>
-PKG_LICENSE       := GPL-3.0
-PKG_LICENSE_FILES := LICENSE
+PKG_MAINTAINER:=Clark Wang <dearvoid@gmail.com>
+PKG_LICENSE:=GPL-3.0-only
+PKG_LICENSE_FILES:=LICENSE
 
 include $(INCLUDE_DIR)/package.mk
 
 define Package/sexpect
-  SECTION  := utils
-  CATEGORY := Utilities
-  TITLE    := Expect for Shells
-  URL      := https://github.com/clarkwang/sexpect
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=Expect for Shells
+  URL:=https://github.com/clarkwang/sexpect
 endef
 
 define Package/sexpect/description

utils/sexpect/test.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+out=`$1 --version`
+if [ "$out" != "$1 $2" ]; then
+    exit 1
+fi