Revert to English if jibber_jabber can't detect the language; revert accidental removal of two zh_CN translations.

cmd/gotop/main.go

@@ -362,8 +362,7 @@ func run() int {
 	}
 	lang, err := jj.DetectIETF()
 	if err != nil {
-		fmt.Printf("failed to get language setting from environment: %s\n", err)
-		return 2
+		lang = "en_US"
 	}
 	lang = strings.Replace(lang, "-", "_", -1)
 	// Get the locale from the os

translations/dicts/zh_CN.toml

@@ -88,13 +88,13 @@ test="执行测试并返回成功或失败码。"
 conffile="用于替代缺省参数的配置文件（必须是第一个参数）"
 list="""
 List <devices|layouts|colorschemes|paths|keys>
-   devices: Prints out device names for filterable widgets
-   layouts: Lists build-in layouts
-   colorschemes: Lists built-in colorschemes
-   paths: List out configuration file search paths
-   widgets: Widgets that can be used in a layout
-   keys: Show the keyboard bindings."""
-write="Write out a default config file."
+   devices: 显示可用于过滤的设备名
+   layouts: 列出所有内置布局方案
+   colorschemes: 列出所有内置配色方案
+   paths: 列出配置文件的搜索路径
+   widgets: 所有可被用于布局的组件
+   keys: 显示所有热键。"""
+write="将当前配置写入缺省配置文件。"
 
 
 [config.err]