Another fix to pretty printer (#3641)

src/cfnlint/formatters/pretty.py

@@ -28,7 +28,7 @@ def print_matches(self, matches, rules, config):
 
         # ruff: noqa: E501
         results.append(
-            f"Cfn-lint scanned {colored(len(config.templates) if config.templates else 1, color.bold_reset)}"
+            f"Cfn-lint scanned {colored(1 if config.templates is None else len(config.templates), color.bold_reset)}"
             " templates against "
             f"{colored(len(rules.used_rules), color.bold_reset)} rules and found "
             f'{colored(len([i for i in matches if i.rule.severity.lower() == "error"]), color.error)} '