Use   as white space in xml

[huangmin-ms]

Summary

Workaround for https://dev.azure.com/ceapex/Engineering/_workitems/edit/738082

[ghost]

I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

[gewarren]

I'd rather just reword as suggested if the whitespace issue isn't going to be fixed. Otherwise someone might come in later and replace   with a space character, not knowing the history.

[opbld32]

Learn Build status updates of commit eb4b8f1:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/Microsoft.Extensions.Configuration/CommandLineConfigurationExtensions.xml	✅Succeeded	View
xml/Microsoft.Extensions.Options/IOptionsMonitor`1.xml	✅Succeeded	View
xml/Microsoft.Extensions.Options/IOptionsSnapshot`1.xml	✅Succeeded	View
xml/Microsoft.Extensions.Options/OptionsManager`1.xml	✅Succeeded	View
xml/System.Diagnostics.CodeAnalysis/UnscopedRefAttribute.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:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[opbld31]

Learn Build status updates of commit eb4b8f1:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/Microsoft.Extensions.Configuration/CommandLineConfigurationExtensions.xml	✅Succeeded	View
xml/Microsoft.Extensions.Options/IOptionsMonitor`1.xml	✅Succeeded	View
xml/Microsoft.Extensions.Options/IOptionsSnapshot`1.xml	✅Succeeded	View
xml/Microsoft.Extensions.Options/OptionsManager`1.xml	✅Succeeded	View
xml/System.Diagnostics.CodeAnalysis/UnscopedRefAttribute.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:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[opbld34]

Learn Build status updates of commit 4bbb824:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/Microsoft.Extensions.Configuration/CommandLineConfigurationExtensions.xml	✅Succeeded	View
xml/Microsoft.Extensions.Options/IOptionsMonitor`1.xml	✅Succeeded	View
xml/Microsoft.Extensions.Options/IOptionsSnapshot`1.xml	✅Succeeded	View
xml/Microsoft.Extensions.Options/OptionsManager`1.xml	✅Succeeded	View
xml/System.Diagnostics.CodeAnalysis/UnscopedRefAttribute.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:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel