chore: add go 1.15 to travis

nickysemenza · nickysemenza · commit 5c037eb7f964 · 2020-11-06T15:56:45.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -6,13 +6,15 @@ matrix:
     - go: 1.12.x
     - go: 1.13.x
     - go: 1.14.x
+    - go: 1.15.x
     - arch: s390x
       go: 1.12.x
     - arch: s390x
       go: 1.13.x
     - arch: s390x
       go: 1.14.x
-
+    - arch: s390x
+      go: 1.15.x
 # Install g++-4.8 to support std=c++11 for github.com/google/certificate-transparency/go/merkletree
 addons:
   apt:
