bump golang for travis

majek · majek · commit 2ee45622f0cc · 2020-09-11T17:27:01.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,6 @@
 language: go
 go:
-- 1.13.x
+- 1.15.x
 before_install:
 - go get -u github.com/mattn/goveralls
 script:
