Add StringSplitOptions.TrimEntries#35740

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GrabYourPitchforks:str_trim

Jun 13, 2020

Commits on May 1, 2020

Add StringSplitOptions.TrimEntries (not yet hooked up)
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Remove Utf8StringSplitOptions in favor of StringSplitOptions
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Commits on May 2, 2020

Commits on Jun 12, 2020

Commits on Jun 13, 2020

Fix off-by-one errors in SplitWithPostProcessing
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