Update helptext + download?

cmdDownload.go

@@ -10,7 +10,7 @@ import (
 func init() {
 	command := Command{
 		Cmd:         []string{"download", "d"},
-		Description: "Download a file",
+		Description: "/d $messageId $fileName - Download a file to user's downloadpath",
 		Help:        "",
 		Exec:        cmdDownloadFile,
 	}
@@ -20,7 +20,12 @@ func init() {
 
 func cmdDownloadFile(cmd []string) {
 	messageID, _ := strconv.Atoi(cmd[1])
-	fileName := cmd[2]
+	var fileName string
+	if len(cmd) == 3 {
+		fileName = cmd[2]
+	} else {
+		fileName = ""
+	}
 
 	chat := k.NewChat(channel)
 	_, err := chat.Download(messageID, fmt.Sprintf("%s/%s", downloadPath, fileName))

cmdHelp.go

@@ -10,7 +10,7 @@ import (
 func init() {
 	command := Command{
 		Cmd:         []string{"help", "h"},
-		Description: "Show information about avaailable commands",
+		Description: "/h Show information about available commands",
 		Help:        "",
 		Exec:        cmdHelp,
 	}

cmdJoin.go

@@ -11,7 +11,7 @@ import (
 func init() {
 	command := Command{
 		Cmd:         []string{"join", "j"},
-		Description: "Join a channel",
+		Description: "/j $team/user $channel - Join a chat, $user or $team $channel",
 		Help:        "",
 		Exec:        cmdJoin,
 	}

cmdReact.go

@@ -7,7 +7,7 @@ import "strconv"
 func init() {
 	command := Command{
 		Cmd:         []string{"react", "r", "+"},
-		Description: "React to a message",
+		Description: "/r $messageId $reaction - React to a message (messageID is optional)",
 		Help:        "",
 		Exec:        cmdReact,
 	}

cmdStream.go

@@ -2,11 +2,10 @@
 
 package main
 
-
 func init() {
 	command := Command{
 		Cmd:         []string{"stream", "s"},
-		Description: "Stream all incoming messages",
+		Description: "/s - Stream all incoming messages",
 		Help:        "",
 		Exec:        cmdStream,
 	}

cmdUploadFile.go

@@ -9,7 +9,7 @@ import (
 func init() {
 	command := Command{
 		Cmd:         []string{"upload", "u"},
-		Description: "Upload a file",
+		Description: "/u $filePath $fileName - Upload file with optional name",
 		Help:        "",
 		Exec:        cmdUploadFile,
 	}

main.go

@@ -110,8 +110,6 @@ func formatOutput(api keybase.ChatAPI) string {
 	return ret
 }
 
-
-
 func populateList() {
 	_, maxY := g.Size()
 	if testVar, err := k.ChatList(); err != nil {