From 31be09c1c22cf30e43954d6adf6487dc68bfac58 Mon Sep 17 00:00:00 2001
From: cn <cn@mycrobase.de>
Date: Fri, 28 Feb 2020 13:13:02 +0100
Subject: [PATCH] travis: fix build config validation problems

- https://docs.travis-ci.com/user/reference/overview/#deprecated-virtualization-environments
---
 .travis.yml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 7534198..a02b0a5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,8 @@
 ---
-sudo: false
+os: linux
 language: ruby
 rvm:
-  - 2.6
-  - 2.5
-  - 2.4
-  - 2.3
+- 2.6
+- 2.5
+- 2.4
+- 2.3