skip warnings on commented out and empty lines

pkg/filter/driftignore.go

@@ -39,6 +39,9 @@ func (r *DriftIgnore) readIgnoreFile() error {
 		line := scanner.Text()
 		typeVal := readDriftIgnoreLine(line)
 		nbArgs := len(typeVal)
+		if nbArgs == 0 || strings.HasPrefix(line, "#") {
+			continue // skip empty or commented out lines
+		} else {
 			if nbArgs < 2 {
 				logrus.WithFields(logrus.Fields{
 					"line": line,
@@ -70,6 +73,7 @@ func (r *DriftIgnore) readIgnoreFile() error {
 			ignoreSublist = append(ignoreSublist, path)
 			r.driftExclusionList[res] = ignoreSublist
 		}
+	}
 
 	if err := scanner.Err(); err != nil {
 		return err