fix unit test for Go 1.11.11

Author: junedev

.travis.yml

@@ -1,7 +1,8 @@
 language: go
 
 go:
-  - 1.11.x
+  - 1.11.11
+  - 1.11.5
 
 before_install:
   - go get -u github.com/golang/dep/cmd/dep
@@ -14,4 +15,4 @@ script:
   - gometalinter.v2 --vendor --deadline=300s ./...
 
 notifications:
-  email: false
+  email: false

request_test.go

@@ -267,7 +267,7 @@ func TestDoOtherErrors(t *testing.T) {
 	})
 
 	t.Run("request cannot be sent", func(t *testing.T) {
-		params := Params{URL: "\n"}
+		params := Params{URL: "http://"}
 		err := Do(params, nil)
 		if assert.Error(t, err) {
 			assert.Contains(t, err.Error(), "failed to send request")