*: remove periods and align case at the beginning of sentences

[lhy1024]

What problem does this PR solve?

Issue Number: Ref #4399

What is changed and how does it work?

Check List

Tests

• Unit test

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• rleungx

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[codecov]

Codecov Report

Base: 74.86% // Head: 74.84% // Decreases project coverage by -0.02% ⚠️

Coverage data is based on head (6fc48f9) compared to base (71f776f).
Patch coverage: 63.33% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6034      +/-   ##
==========================================
- Coverage   74.86%   74.84%   -0.02%     
==========================================
  Files         365      365              
  Lines       36552    36552              
==========================================
- Hits        27363    27358       -5     
  Misses       6798     6798              
- Partials     2391     2396       +5     

Flag	Coverage Δ
unittests	74.84% <63.33%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/mcs/resource_manager/server/server.go	48.05% <0.00%> (ø)
tools/pd-analysis/analysis/parse_log.go	34.21% <0.00%> (ø)
pkg/dashboard/distroutil/distro.go	54.54% <33.33%> (ø)
server/cluster/unsafe_recovery_controller.go	78.70% <33.33%> (-0.35%)	⬇️
pkg/encryption/key_manager.go	70.11% <50.00%> (-1.60%)	⬇️
pkg/dashboard/adapter/manager.go	79.31% <75.00%> (ø)
tools/pd-analysis/analysis/transfer_counter.go	92.23% <75.00%> (ø)
pkg/audit/audit.go	91.66% <100.00%> (ø)
pkg/dashboard/keyvisual/input/core.go	33.33% <100.00%> (ø)
server/region_syncer/client.go	85.82% <100.00%> (-0.75%)	⬇️
... and 27 more

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[rleungx]

/merge

[ti-chi-bot]

@rleungx: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 6fc48f9