[fix](auditloader plugin): fix bug for AuditLoaderPlugin that stmt ap…

…pears truncated when stmt contains '\n'. (apache#12627)

Co-authored-by: wangxiangyu@360shuke.com <wangxiangyu@360shuke.com>

fe_plugins/auditloader/src/main/java/org/apache/doris/plugin/audit/AuditLoaderPlugin.java

@@ -163,7 +163,7 @@ private void assembleAudit(AuditEvent event) {
         auditBuffer.append(event.peakMemoryBytes).append("\t");
         // trim the query to avoid too long
         // use `getBytes().length` to get real byte length
-        String stmt = truncateByBytes(event.stmt).replace("\t", " ");
+        String stmt = truncateByBytes(event.stmt).replace("\n", " ").replace("\t", " ");
         LOG.debug("receive audit event with stmt: {}", stmt);
         auditBuffer.append(stmt).append("\n");
     }