The config parameter "mapreduce.job.num-opportunistic-maps-percent" is confusing when requesting Opportunistic containers in YARN job

Execute the below job by Passing this config -Dmapreduce.job.num-opportunistic-maps-percent ,which actually represents the number of containers to be launched as Opportunistic, not in % of the total mappers requested , i think this configuration name should be modified accordingly and also the same gets printed in AM logs which also needs to be corrected accordingly.

Job Command: hadoop jar HDFS/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-3.1.1-hw-ei-310001-SNAPSHOT.jar pi -Dmapreduce.job.num-opportunistic-maps-percent="20" 20 99

In AM logs this message is displayed. it should be 20 , not 20% ?
“2021-02-10 20:23:23,023 | INFO | main | 20% of the mappers will be scheduled using OPPORTUNISTIC containers | RMContainerAllocator.java:257”

Job Command: hadoop jar HDFS/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-3.1.1-hw-ei-310001-SNAPSHOT.jar pi -Dmapreduce.job.num-opportunistic-maps-percent="100" 20 99

In AM logs this message is displayed. It should be 100, not 100% ?

2021-02-10 20:28:16,016 | INFO  | main | 100% of the mappers will be scheduled using OPPORTUNISTIC containers | RMContainerAllocator.java:257