fix(libsdk): cfs_close not check return value.

[longerfly]

What this PR does / why we need it:
cfs_close not check return value.

Which issue this PR fixes:

fixes #

Special notes for your reviewer:

Release note:

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 lines in your changes are missing coverage. Please review.

❗ No coverage uploaded for pull request base (develop-v3.3.2@99e91d8). Click here to learn what that means.

❗ Current head 2da3b65 differs from pull request most recent head e9a2251. Consider uploading reports for the commit e9a2251 to get more accurate results

Files	Patch %	Lines
util/auditlog/auditlog.go	66.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@                Coverage Diff                @@
##             develop-v3.3.2    #3204   +/-   ##
=================================================
  Coverage                  ?   40.51%           
=================================================
  Files                     ?      537           
  Lines                     ?   108510           
  Branches                  ?        0           
=================================================
  Hits                      ?    43964           
  Misses                    ?    60833           
  Partials                  ?     3713           

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[leonrayang]

LGTM