ILRepack requires Windows as-is

Pending contributing an ilrepack dotnet tool

Author: kzu

src/SponsorLink/Analyzer/Analyzer.csproj

@@ -6,8 +6,9 @@
     <IsRoslynComponent>true</IsRoslynComponent>
     <PackFolder>analyzers/dotnet/roslyn4.0</PackFolder>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <MergeAnalyzerAssemblies>false</MergeAnalyzerAssemblies>
+    <MergeAnalyzerAssemblies Condition="'$(OS)' == 'Windows_NT'">true</MergeAnalyzerAssemblies>
     <CustomAfterMicrosoftCSharpTargets>$(MSBuildThisFileDirectory)..\SponsorLink.targets</CustomAfterMicrosoftCSharpTargets>
-    <MergeAnalyzerAssemblies>true</MergeAnalyzerAssemblies>
     <ImplicitUsings>disable</ImplicitUsings>
     <FundingPackageId>SponsorableLib</FundingPackageId>
   </PropertyGroup>

src/SponsorLink/SponsorLink.targets

@@ -6,7 +6,7 @@
   <PropertyGroup>
     <ShowSponsorLinkInProject Condition="$(ShowSponsorLinkInProject) == '' and '$(TargetFramework)' == 'netstandard2.0'">true</ShowSponsorLinkInProject>
     <!-- This ensures we expose only the main assembly in the Dependencies > Analyzers node -->
-    <MergeAnalyzerAssemblies Condition="'$(MergeAnalyzerAssemblies)' == '' and '$(Configuration)' == 'Release'">true</MergeAnalyzerAssemblies>
+    <MergeAnalyzerAssemblies Condition="'$(MergeAnalyzerAssemblies)' == '' and '$(Configuration)' == 'Release' and '$(OS)' == 'Windows_NT'">true</MergeAnalyzerAssemblies>
     <!-- Whether we merge files or not, dependencies will need to be copy-local -->
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
     <!-- Make Resources visible to intellisense -->