Replace glog with klog

[ColinChamber]

No description provided.

[codecov-commenter]

Codecov Report

Patch coverage: 3.03% and no project coverage change.

Comparison is base (b5ba135) 32.62% compared to head (b06fb76) 32.62%.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #231   +/-   ##
=======================================
  Coverage   32.62%   32.62%           
=======================================
  Files          53       53           
  Lines        4377     4377           
=======================================
  Hits         1428     1428           
  Misses       2794     2794           
  Partials      155      155           

Flag	Coverage Δ
unittests	32.62% <3.03%> (ø)

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

Files Changed	Coverage Δ
codec/decoder.go	0.00% <0.00%> (ø)
codec/encoder.go	45.45% <0.00%> (ø)
condition_filter/filter.go	55.09% <0.00%> (ø)
filter/add.go	67.85% <0.00%> (ø)
filter/date.go	62.83% <0.00%> (ø)
filter/filter.go	15.78% <0.00%> (ø)
filter/filters.go	7.14% <0.00%> (ø)
filter/gsub.go	64.70% <0.00%> (ø)
filter/ipip.go	1.98% <0.00%> (ø)
filter/json.go	70.73% <0.00%> (ø)
... and 27 more

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.