refactor(root.go): simplify error handling in checkAndSpawnDaemon

[yxxhero]

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

• 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.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 34.45%. Comparing base (916eff7) to head (0115402).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/dfget/cmd/root.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3962      +/-   ##
==========================================
- Coverage   34.48%   34.45%   -0.03%     
==========================================
  Files         342      342              
  Lines       40092    40091       -1     
==========================================
- Hits        13824    13812      -12     
- Misses      25363    25373      +10     
- Partials      905      906       +1     

Flag	Coverage Δ
unittests	34.45% <0.00%> (-0.03%)	⬇️

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

Files with missing lines	Coverage Δ
cmd/dfget/cmd/root.go	0.00% <0.00%> (ø)

... and 5 files with indirect coverage changes

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[Liam-Zhao]

LGTM

[chlins]

lgtm