fixed path resolution

src/twitch.go

@@ -14,6 +14,7 @@ import (
   "time"
   "net"
   "io/ioutil"
+  "path/filepath"
   "unicode/utf8"
 )
 
@@ -143,11 +144,11 @@ func tw_process_message(rawmsg string) {
 
 /* entry point */
 func twitch_run(config map[string]interface{}) {
-  token_path := "auth/twitch-token.txt"
+  token_path := filepath.Join(APP_ROOT_DIR, "auth", "twitch-token.txt")
   token, err := ioutil.ReadFile(token_path)
   token_err_msg := "[twitch] No Twitch token file provided or it is empty. "
   token_err_msg += "Please visit https://twitchapps.com/tmi/, generate a token there "
-  token_err_msg += "and paste it into the auth/twitch-token.txt file!"
+  token_err_msg += "and paste it into the " + token_path +" file!"
   if err != nil {
     log.Fatal(token_err_msg + "\nDetailed error: ", err)
   }