[#3170] Addressed last comment

diff --git a/doc/sphinx/arm/classify.rst b/doc/sphinx/arm/classify.rst
index 4b167ccf6b1005b95c5a98d35297faabe2747908..33700ea305e47c3d5a3faa8d0a51e3649547f3eb 100644 (file)
--- a/doc/sphinx/arm/classify.rst
+++ b/doc/sphinx/arm/classify.rst
@@ -585,6 +585,9 @@ So inequality, case insensitive pattern matching or pattern search.
 
    Detected invalid regular expressions are considered as syntax errors,
    runtime exceptions during match are handled as no match.
+
+.. warning::
+
    Be careful with the match operator as it can result in very poor
    performance leading to regular expression denial of service (ReDoS).