Beautify scheduler/CDN log

[244372610]

Description

Related Issue

Motivation and Context

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist:

• Code compiles correctly.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov-commenter]

Codecov Report

Merging #618 (d8a45e6) into main (5ae1888) will decrease coverage by 0.15%.
The diff coverage is 28.00%.

@@            Coverage Diff             @@
##             main     #618      +/-   ##
==========================================
- Coverage   38.58%   38.43%   -0.16%     
==========================================
  Files          88       88              
  Lines        6969     6963       -6     
==========================================
- Hits         2689     2676      -13     
- Misses       3900     3908       +8     
+ Partials      380      379       -1     

Flag	Coverage Δ
Object-compatibility-e2etests	?
e2etests	?
unittests	38.43% <28.00%> (-0.16%)	⬇️

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

Impacted Files	Coverage Δ
cdnsystem/supervisor/task/manager.go	10.37% <0.00%> (ø)
cdnsystem/supervisor/task/manager_util.go	0.00% <0.00%> (ø)
pkg/source/httpprotocol/http_source_client.go	66.66% <0.00%> (ø)
cdnsystem/supervisor/cdn/cache_detector.go	57.25% <50.00%> (ø)
cdnsystem/supervisor/cdn/manager.go	61.40% <66.66%> (ø)
cdnsystem/supervisor/cdn/downloader.go	62.50% <100.00%> (ø)
client/daemon/peer/peertask_stream.go	55.66% <0.00%> (-2.27%)	⬇️
client/daemon/peer/peertask_base.go	33.06% <0.00%> (-1.23%)	⬇️

[gaius-qi]

LGTM