Add CultureInfo.InvariantCulture to floating point number formatting

[tg123]

fix #1532

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1541   +/-   ##
=========================================
  Coverage          ?   61.34%           
=========================================
  Files             ?      103           
  Lines             ?     3053           
  Branches          ?      637           
=========================================
  Hits              ?     1873           
  Misses            ?     1180           
  Partials          ?        0           

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[brendandburns]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: brendandburns, tg123

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