Fix linting errors

regoext/cache.go

@@ -29,9 +29,9 @@ func (ce *CacheExt) GetCacheFunc() (*rego.Function, rego.Builtin3) {
 
 			if err := ast.As(a.Value, &key); err != nil {
 				return nil, err
-			} else if ast.As(b.Value, &namespace); err != nil {
+			} else if err = ast.As(b.Value, &namespace); err != nil {
 				return nil, err
-			} else if ast.As(c.Value, &scope); err != nil {
+			} else if err = ast.As(c.Value, &scope); err != nil {
 				return nil, err
 			}
 

regoext/cache_test.go

@@ -19,7 +19,6 @@ func TestCacheExt_GetCacheFunc(t *testing.T) {
 		fmt.Fprint(w, expected)
 	}))
 	defer srv.Close()
-	fmt.Println(srv.URL)
 
 	cache := regoext.NewCacheExt(srv.URL)