Fix placeholder files in packages

[ViktorHofer]

Reported in #67647 (comment). Accidentally got the package path wrong for placeholder files and didn't notice it locally.

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Issue Details

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Reported in #67647 (comment). Accidentally got the package path wrong for placeholder files and didn't notice it locally.

Author:	ViktorHofer
Assignees:	ViktorHofer
Labels:	area-Infrastructure-libraries
Milestone:	-

[eerhardt]

LGTM

[am11]

Thanks for the quick fix. Should we fix these instances as well:

% git grep 'PackagePath.*targets"'
eng/packaging.targets:      <Content Include="$(MultiTargetRoslynComponentTargetsFileIntermediatePath)" PackagePath="buildTransitive\netstandard2.0\$(PackageId).targets" />
eng/packaging.targets:      <Content Include="$(MultiTargetRoslynComponentTargetsFileIntermediatePath)" PackagePath="buildTransitive\%(NETStandardCompatError.Supported)\$(PackageId).targets" Condition="'@(NETStandardCompatError)' != ''" />
eng/packaging.targets:            PackagePath="buildTransitive\%(NETStandardCompatError.Identity)\$(PackageId).targets"
eng/packaging.targets:            PackagePath="$(_NETStandardCompatErrorPlaceholderFilePackagePath)\$(PackageId).targets"
src/libraries/System.Resources.Extensions/src/System.Resources.Extensions.csproj:               PackagePath="buildTransitive\$(NetFrameworkMinimum)\$(PackageId).targets" />

Apparently PackagePath with forward slashes accepts filename as well as directory name (based on trailing slash), but with backslashes it considers the value as directory (NuGet/Home#6351).

[ViktorHofer]

Should we fix these instances as well

I tested the packages and the cases that you pointed out work fine. I don't think there's anything to fix there. Can you please elaborate which kind of issues you are seeing? :)

[am11]

I tested the packages and the cases that you pointed out work fine.

Cool. I just skimmed through #67647 diff and thought the other similar places (with filename in PackagePath value) also need this change. If it works to unblock the codeflow, 👍