Fix golang lint errors (#2068)

* Fix golang lint errors

Signed-off-by: Harsh Thakur <harshthakur9030@gmail.com>

* Typo for fields

Signed-off-by: Harsh Thakur <harshthakur9030@gmail.com>

* Multi error fix

Signed-off-by: Harsh Thakur <harshthakur9030@gmail.com>

* Multi error fix

Signed-off-by: Harsh Thakur <harshthakur9030@gmail.com>

* Add nolint to logtostderr errcheck

Signed-off-by: Harsh Thakur <harshthakur9030@gmail.com>

pkg/apis/core/v1/types.go

@@ -658,7 +658,7 @@ type (
 		// +optional
 		Prefix *string `json:"prefix,omitempty"`
 
-		// Deprecated: Use Methods instead of Method.
+		// Use Methods instead of Method. This field is going to be deprecated in a future release
 		// HTTP method to access a function.
 		// +optional
 		Method string `json:"method"`

pkg/apis/core/v1/validation.go

@@ -17,6 +17,7 @@ limitations under the License.
 package v1
 
 import (
+	"errors"
 	"fmt"
 	"net/http"
 	"regexp"
@@ -585,7 +586,7 @@ func (e *Environment) Validate() error {
 	if e.Spec.Runtime.PodSpec != nil {
 		for _, container := range e.Spec.Runtime.PodSpec.Containers {
 			if container.Command == nil && container.Image == e.Spec.Runtime.Image && container.Name != e.ObjectMeta.Name {
-				multierror.Append(result, fmt.Errorf("container with image same as runtime image in podspec, must have name same as environment name"))
+				result = multierror.Append(result, errors.New("container with image same as runtime image in podspec, must have name same as environment name"))
 			}
 		}
 	}