HDFS-13949. Correct the description of dfs.datanode.disk.check.timeout in hdfs-default.xml. Contributed by Toshihiro Suzuki.

hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml

@@ -5134,11 +5134,10 @@
     <name>dfs.datanode.disk.check.timeout</name>
     <value>10m</value>
     <description>
-      Maximum allowed time for a disk check to complete during DataNode
-      startup. If the check does not complete within this time interval
-      then the disk is declared as failed. This setting supports
-      multiple time unit suffixes as described in dfs.heartbeat.interval.
-      If no suffix is specified then milliseconds is assumed.
+      Maximum allowed time for a disk check to complete. If the check does not
+      complete within this time interval then the disk is declared as failed.
+      This setting supports multiple time unit suffixes as described in
+      dfs.heartbeat.interval. If no suffix is specified then milliseconds is assumed.
     </description>
   </property>