[HUDI-5153] Remove the optional wildcard from FSUtils#LOG_FILE_PATTERN

Author: danny0405

hudi-common/src/main/java/org/apache/hudi/common/fs/FSUtils.java

@@ -79,7 +79,7 @@ public class FSUtils {
   private static final Logger LOG = LogManager.getLogger(FSUtils.class);
   // Log files are of this pattern - .b5068208-e1a4-11e6-bf01-fe55135034f3_20170101134598.log.1
   private static final Pattern LOG_FILE_PATTERN =
-      Pattern.compile("\\.(.*)_(.*)\\.(.*)\\.([0-9]*)(_(([0-9]*)-([0-9]*)-([0-9]*)(-cdc)?))?");
+      Pattern.compile("\\.(.*)_(.*)\\.(.*)\\.([0-9]*)(_(([0-9]*)-([0-9]*)-([0-9]*)(-cdc)?))");
   private static final String LOG_FILE_PREFIX = ".";
   private static final int MAX_ATTEMPTS_RECOVER_LEASE = 10;
   private static final long MIN_CLEAN_TO_KEEP = 10;