Merge pull request #44 from hakman/travisci-arm64

Add CI tests for ARM64
diff --git a/.travis.yml b/.travis.yml
index d20e23e..54ed8f9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,7 @@
 language: go
-dist: xenial
-go:
-  - 1.12.x
-  - 1.13.x
+arch: arm64
+dist: focal
+go: 1.15.x
 script:
   - diff -u <(echo -n) <(gofmt -d *.go)
   - diff -u <(echo -n) <(golint $(go list -e ./...) | grep -v YAMLToJSON)