update port

vendor/github.com/gorilla/sessions/.travis.yml

@@ -0,0 +1,28 @@
+language: go
+sudo: false
+
+matrix:
+  include:
+    - go: 1.3.x
+    - go: 1.4.x
+    - go: 1.5.x
+    - go: 1.6.x
+    - go: 1.7.x
+    - go: 1.8.x
+    - go: 1.9.x
+    - go: 1.10.x
+    - go: 1.11.x
+    - go: 1.x
+      env: LATEST=true
+    - go: tip
+  allow_failures:
+    - go: tip
+
+install:
+  - # skip
+
+script:
+  - go get -t -v ./...
+  - diff -u <(echo -n) <(gofmt -d .)
+  - if [[ "$LATEST" = true ]]; then go vet $(go list ./... | grep -v /vendor/); fi
+  - go test -v -race ./...