[Issue #4330]Fix some comments in DefaultElectPolicy

[hzh0425]

Make sure set the target branch to develop

What is the purpose of the change

Fix some comments in DefaultElectPolicy

Brief changelog

Fix some comments in DefaultElectPolicy

Verifying this change

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[codecov-commenter]

Codecov Report

Merging #5546 (bc9055d) into develop (a7c1d49) will decrease coverage by 0.38%.
The diff coverage is 100.00%.

@@              Coverage Diff              @@
##             develop    #5546      +/-   ##
=============================================
- Coverage      43.18%   42.79%   -0.39%     
- Complexity      8009     8040      +31     
=============================================
  Files           1016     1031      +15     
  Lines          71535    72741    +1206     
  Branches        9467     9613     +146     
=============================================
+ Hits           30891    31132     +241     
- Misses         36751    37668     +917     
- Partials        3893     3941      +48     

Impacted Files	Coverage Δ
...etmq/controller/elect/impl/DefaultElectPolicy.java	75.00% <100.00%> (ø)
...che/rocketmq/common/consumer/ConsumeFromWhere.java	0.00% <0.00%> (-100.00%)	⬇️
...g/apache/rocketmq/common/utils/CheckpointFile.java	0.00% <0.00%> (-74.55%)	⬇️
...apache/rocketmq/remoting/common/ServiceThread.java	0.00% <0.00%> (-73.34%)	⬇️
...g/apache/rocketmq/common/message/MessageQueue.java	0.00% <0.00%> (-45.46%)	⬇️
...he/rocketmq/broker/mqtrace/SendMessageContext.java	34.34% <0.00%> (-28.29%)	⬇️
.../apache/rocketmq/common/filter/ExpressionType.java	0.00% <0.00%> (-25.00%)	⬇️
...n/java/org/apache/rocketmq/common/TopicConfig.java	36.84% <0.00%> (-19.55%)	⬇️
...he/rocketmq/common/attribute/TopicMessageType.java	91.66% <0.00%> (-8.34%)	⬇️
...ocketmq/broker/processor/SendMessageProcessor.java	37.74% <0.00%> (-6.42%)	⬇️
... and 592 more

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[mxsm]

LGTM~