Fix JavaDoc of BatchStatus.isLessThanOrEqualTo

The @return tag incorrectly stated 'less than' instead of
'less than or equal to'.

Closes #5285

Signed-off-by: hanweiwei <duzielww@163.com>

Author: skyhww

spring-batch-core/src/main/java/org/springframework/batch/core/BatchStatus.java

@@ -137,7 +137,7 @@ public boolean isLessThan(BatchStatus other) {
 
 	/**
 	 * @param other A status value to which to compare.
-	 * @return {@code true} if this is less than {@code other}.
+	 * @return {@code true} if this is less than or equal to {@code other}.
 	 */
 	public boolean isLessThanOrEqualTo(BatchStatus other) {
 		return this.compareTo(other) <= 0;