Add comparison in do_if

[goshansmails]

Fixes #601

[codecov]

Codecov Report

Attention: Patch coverage is 78.68852% with 13 lines in your changes are missing coverage. Please review.

Project coverage is 70.91%. Comparing base (53e3b5d) to head (7a13886).
Report is 8 commits behind head on master.

❗ Current head 7a13886 differs from pull request most recent head 43a3d23. Consider uploading reports for the commit 43a3d23 to get more accurate results

Files	Patch %	Lines
pipeline/do_if.go	81.48%	8 Missing and 2 partials ⚠️
fd/util.go	57.14%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #605      +/-   ##
==========================================
- Coverage   70.92%   70.91%   -0.01%     
==========================================
  Files         122      122              
  Lines       12422    12463      +41     
==========================================
+ Hits         8810     8838      +28     
- Misses       3098     3108      +10     
- Partials      514      517       +3     

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[goshansmails]

replaced with #617