Bugfix #3228 - develop - s2s dateutil

[georgemccabe]

Pull Request Testing

• Describe testing already performed for these changes:
  

• Recommend testing for the reviewer(s) to perform, including the location of input datasets, and any additional instructions:
  

• Do these changes include sufficient documentation updates, ensuring that no errors or warnings exist in the build of the documentation? [Yes or No]

• Do these changes include sufficient testing updates? [Yes or No]

• Will this PR result in changes to the test suite? [Yes or No]
  
  If yes, describe the new output and/or changes to the existing output:
  

• Do these changes introduce new SonarQube findings? [Yes or No]
  
  If yes, please describe:

• Please complete this pull request review by [Fill in date].
  

Pull Request Checklist

See the METplus Workflow for details.

• Add any new Python packages to the METplus Components Python Requirements table.
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• Complete the PR definition above.
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[coveralls]

Pull Request Test Coverage Report for Build 21999251266

Details

• 3 of 3 (100.0%) changed or added relevant lines in 3 files are covered.
• 7 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.009%) to 92.3%

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Files with Coverage Reduction	New Missed Lines	%
metplus/util/diff_util.py	7	84.24%

Totals
Change from base Build 21997995578:	0.009%
Covered Lines:	9589
Relevant Lines:	10389

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💛 - Coveralls