replace log.Fatal with error return

[mmetc]

No description provided.

[github-actions]

@mmetc: There are no area labels on this PR. You can add as many areas as you see fit.

• /area agent
• /area local-api
• /area cscli
• /area appsec
• /area security
• /area configuration

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 26.08696% with 17 lines in your changes are missing coverage. Please review.

Project coverage is 27.52%. Comparing base (0ba05ac) to head (642a8fb).

Files	Patch %	Lines
pkg/apiserver/papi.go	0.00%	5 Missing ⚠️
pkg/cache/cache.go	55.55%	4 Missing ⚠️
pkg/hubtest/hubtest_item.go	0.00%	3 Missing ⚠️
pkg/leakybucket/manager_load.go	0.00%	3 Missing ⚠️
pkg/csprofiles/csprofiles.go	50.00%	1 Missing ⚠️
pkg/parser/node.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2996   +/-   ##
=======================================
  Coverage   27.52%   27.52%           
=======================================
  Files         398      398           
  Lines       58142    58148    +6     
=======================================
+ Hits        16005    16007    +2     
- Misses      40192    40195    +3     
- Partials     1945     1946    +1     

Flag	Coverage Δ
unit-linux	34.87% <6.66%> (-0.01%)	⬇️
unit-windows	25.59% <26.08%> (+<0.01%)	⬆️

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[buixor]

lgtm