run 'go get -u; make revendor'

Signed-off-by: Stephan Renatus <srenatus@chef.io>

vendor/github.com/grpc-ecosystem/go-grpc-prometheus/.travis.yml

@@ -1,9 +1,16 @@
 sudo: false
 language: go
+# * github.com/grpc/grpc-go still supports go1.6
+#   - When we drop support for go1.6 we can remove golang.org/x/net/context
+#     below as it is part of the Go std library since go1.7
+# * github.com/prometheus/client_golang already requires at least go1.7 since
+#   September 2017
 go:
   - 1.6.x
   - 1.7.x
   - 1.8.x
+  - 1.9.x
+  - 1.10.x
   - master
 
 install:
@@ -11,9 +18,8 @@ install:
   - go get google.golang.org/grpc
   - go get golang.org/x/net/context
   - go get github.com/stretchr/testify
-
 script:
- - ./test_all.sh
+ - make test 
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)