Fix typo in smart_indent UnifiedSettingsManagerStorage key

[Copilot]

The smart_indent option's storage key contained an erroneous "arp" substring between the language placeholder and the tabs path component.

Changes

• Corrected key from "languages.%LANGUAGE%arp.tabs.indenting" to "languages.%LANGUAGE%.tabs.indenting"
• Aligns with other tab settings pattern: indent_size, indent_style, tab_width

This ensures the smart indent setting correctly maps to the unified settings manager path languages.{language}.tabs.indenting.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• kijvsblobprodcus387.vsblob.vsassets.io
  • Triggering command: /usr/share/dotnet/dotnet dotnet test ./src/VisualStudio/Core/Test.Next/Roslyn.VisualStudio.Next.UnitTests.csproj --filter FullyQualifiedName~VisualStudioOptionStorageTests --verbosity minimal (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

On VisualStudioOptionStorage.cs:139-139, The "arp" in line 139 shouldn't be there. It should just be %LANGUAGE%.

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