Minor change: var reuse

Author: bpintea

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/scalar/string/regex/RegexMatch.java

@@ -81,7 +81,7 @@ void serializeCaseInsensitivity(StreamOutput out) throws IOException {
             // the serialization of the boolean would result in wrong results.
             throw new EsqlIllegalArgumentException(
                 name() + " with case insensitivity is not supported in peer node's version [{}]. Upgrade to version [{}, {}] or newer.",
-                out.getTransportVersion(),
+                transportVersion,
                 TransportVersions.ESQL_REGEX_MATCH_WITH_CASE_INSENSITIVITY_8_19,
                 TransportVersions.ESQL_REGEX_MATCH_WITH_CASE_INSENSITIVITY
             );