Fix some typos in cel.go

[logonoff]

I found some typos in cel.go, this PR simply corrects them :)

[perdasilva]

lgtm - thank you!!!!

[openshift-ci]

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This pull-request has been approved by: logonoff, perdasilva

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[perdasilva]

/lgtm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 39.43%. Comparing base (5d2d3fb) to head (c5e4ca7).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #343   +/-   ##
=======================================
  Coverage   39.43%   39.43%           
=======================================
  Files          56       56           
  Lines        4516     4516           
=======================================
  Hits         1781     1781           
  Misses       2581     2581           
  Partials      154      154           

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