Fix #12578 pretty print getParameterMap

Fix #12578 pretty print getParameterMap
checkstyle

jetty-ee10/jetty-ee10-servlet/src/test/java/org/eclipse/jetty/ee10/servlet/RequestTest.java

@@ -663,7 +663,7 @@ protected void service(HttpServletRequest request, HttpServletResponse resp) thr
         HttpTester.Response response = HttpTester.parseResponse(rawResponse);
         assertThat(response.getStatus(), is(HttpStatus.OK_200));
         assertThat(parameterMap.get(), is("{a=[1, 2, 3],b=[one, two, three],c=[],d=[xyz]}"));
-        assertThat(response.getContent().replaceAll("\r\n","\n"), is("""
+        assertThat(response.getContent().replaceAll("\r\n", "\n"), is("""
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