travis: Add go 1.11.x (#876)

HaraldNordgren · methane · commit dea3c7b6f9f2 · 2018-10-26T16:10:16.000+09:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,6 +4,7 @@ go:
   - 1.8.x
   - 1.9.x
   - 1.10.x
+  - 1.11.x
   - master
 
 before_install:

-Original file line number
+Diff line change
   - 1.8.x
   - 1.9.x
   - 1.10.x
 +  - 1.11.x
   - master
 before_install: