Fix a typo that prevented Icecast admin password from being set

node/icecast/password.go

@@ -13,7 +13,7 @@ import (
 // invocations.
 func getAdminPassword(adminPwPath string) (string, error) {
 	data, err := ioutil.ReadFile(adminPwPath)
-	if err != nil {
+	if err == nil {
 		return strings.TrimSpace(string(data)), nil
 	}