flaky-unified_exec_formats_large_output_summary (#6884)

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codex-rs/core/tests/suite/unified_exec.rs

@@ -1586,7 +1586,8 @@ PY
     let large_output = outputs.get(call_id).expect("missing large output summary");
 
     let output_text = large_output.output.replace("\r\n", "\n");
-    let truncated_pattern = r#"(?s)^(token token \n){5,}.*\[\u{2026}\d+ tokens truncated\u{2026}]\n(token token \n){5,}$"#;
+    let truncated_pattern = r#"(?s)^(token token \n){5,}.*\[\u{2026}\d+ tokens truncated\u{2026}]\n(token token \n){5,}"#;
+
     assert_regex_match(truncated_pattern, &output_text);
 
     let original_tokens = large_output