Add staticcheck fixes (#3221)

* Add staticcheck fixes

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

* update golangci-lint version

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

---------

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

pkg/fission-cli/cmd/function/create.go

@@ -342,8 +342,8 @@ func (opts *CreateSubCommand) complete(input cli.Input) error {
 // generatePackageName => will return package name by appending id in function name and will make sure that package name will never be more than length of 63 characters.
 func generatePackageName(fnName string, id string) string {
 	var (
-		lenFnName       int = len(fnName)
-		lenId           int = len(id)
+		lenFnName       = len(fnName)
+		lenId           = len(id)
 		lastIndexOfChar int
 	)
 	if lenFnName+lenId <= 62 {

pkg/fission-cli/cmd/function/test.go

@@ -130,7 +130,7 @@ func (opts *TestSubCommand) do(input cli.Input) error {
 	if len(methods) == 0 {
 		return errors.New("HTTP method not mentioned")
 	} else if len(methods) > 1 {
-		return errors.New("More than one HTTP method not supported")
+		return errors.New("more than one HTTP method not supported")
 	}
 	method, err := httptrigger.GetMethod(methods[0])
 	if err != nil {