Fix golangci-lint download

2b9ea60 updated the version but removed the `v` prefix which I think is what makes the download fail.

Author: silverwind

.travis.yml

@@ -4,7 +4,7 @@ go:
   - "1.13.x"
 script:
   - go test -v ./...
-  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s 1.26.0
+  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s v1.26.0
   - ./bin/golangci-lint run
   - git clean -fdx .
 after_success: