Update docs for Environment.Version

[MSDN-WhiteKnight]

Add information about returned values in .NET Core (this was changed in dotnet/coreclr#22664)

[opbld32]

Docs Build status updates of commit b2a2a1a:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System/Environment.xml	✅Succeeded	View

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[opbld34]

Docs Build status updates of commit 2fcee96:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System/Environment.xml	✅Succeeded	View

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Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

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[opbld33]

Docs Build status updates of commit 2e461e9:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System/Environment.xml	✅Succeeded	View

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

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[jkotas]

LGTM otherwise

[opbld32]

Docs Build status updates of commit 188adb8:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System/Environment.xml	✅Succeeded	View

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

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[opbld30]

Docs Build status updates of commit 9f0d77a:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System/Environment.xml	✅Succeeded	View

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

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[gewarren]

Close/reopen for build.

[opbld34]

Docs Build status updates of commit bdb7c90:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System/Environment.xml	✅Succeeded	View

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

For any questions, please:

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