activate checker ingore

cmd/documentation-checker/variables.go

@@ -31,16 +31,16 @@ var fastlyVariableCategoryPageUrls = []string{
 
 const predefinedPath = "../../__generator__/predefined.yml"
 
-// Following predefined variables are documented in Fastly docs but actually could not use in VCL statement,
-// only could use in an argument of std.count function.
+// Following predefined variables are documented in Fastly docs
+// but actually could not use in VCL statement, only could use in an argument of `std.count` function.
 // Therefore these variables do not treat as lacked variables.
-// var ignorePredefinedVariables = map[string]struct{}{
-// 	"req.headers":    {},
-// 	"bereq.headers":  {},
-// 	"beresp.headers": {},
-// 	"resp.headers":   {},
-// 	"obj.headers":    {},
-// }
+var ignorePredefinedVariables = map[string]struct{}{
+	"req.headers":    {},
+	"bereq.headers":  {},
+	"beresp.headers": {},
+	"resp.headers":   {},
+	"obj.headers":    {},
+}
 
 func factoryVariables(ctx context.Context) (*sync.Map, error) {
 	var eg errgroup.Group
@@ -75,9 +75,9 @@ func checkVariables(m *sync.Map) ([]Variable, error) {
 		v := val.(string) //nolint:errcheck
 
 		// Check ignore varibles
-		// if _, ok := ignorePredefinedVariables[k]; ok {
-		// 	return true
-		// }
+		if _, ok := ignorePredefinedVariables[k]; ok {
+			return true
+		}
 
 		if _, ok := defined[k]; ok {
 			return true