/usr/lib/GNUstep/ is in grr.app 1.0-1+b2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/GNUstep/Applications/
/usr/lib/GNUstep/Applications/Grr.app/
/usr/lib/GNUstep/Applications/Grr.app/Grr
/usr/lib/GNUstep/Applications/Grr.app/Resources/
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleOperations.grrc/
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleOperations.grrc/ArticleOperations
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleTable.grrc/
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleTable.grrc/ArticleTable
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleView.grrc/
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleView.grrc/ArticleView
/usr/lib/GNUstep/Applications/Grr.app/Resources/DatabaseOperations.grrc/
/usr/lib/GNUstep/Applications/Grr.app/Resources/DatabaseOperations.grrc/DatabaseOperations
/usr/lib/GNUstep/Applications/Grr.app/Resources/DatabaseTreeView.grrc/
/usr/lib/GNUstep/Applications/Grr.app/Resources/DatabaseTreeView.grrc/DatabaseTreeView
/usr/lib/GNUstep/Applications/Grr.app/Resources/Fonts.grrc/
/usr/lib/GNUstep/Applications/Grr.app/Resources/Fonts.grrc/Fonts
/usr/lib/GNUstep/Applications/Grr.app/Resources/Proxy.grrc/
/usr/lib/GNUstep/Applications/Grr.app/Resources/Proxy.grrc/Proxy
/usr/lib/GNUstep/Applications/Grr.app/Resources/Searching.grrc/
/usr/lib/GNUstep/Applications/Grr.app/Resources/Searching.grrc/Searching
/usr/lib/GNUstep/Applications/Grr.app/Resources/SubscriptionPanel.grrc/
/usr/lib/GNUstep/Applications/Grr.app/Resources/SubscriptionPanel.grrc/SubscriptionPanel
/usr/lib/GNUstep/Applications/Grr.app/Resources/TreeDatabase.grrdb/
/usr/lib/GNUstep/Applications/Grr.app/Resources/TreeDatabase.grrdb/TreeDatabase
/usr/lib/GNUstep/Applications/Grr.app/Resources/AddCategory.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/AddFeed.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleFile.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleLink.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleOperations.grrc/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleTable.grrc/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/ArticleView.grrc/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/Category.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/Database.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/DatabaseOperations.grrc/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/DatabaseTreeView.grrc/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/DeleteArticle.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/DeleteCategory.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/DeleteFeed.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/English.lproj
/usr/lib/GNUstep/Applications/Grr.app/Resources/Feed.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/FeedFetching.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/FeedFile.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/FetchFeed.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/FetchFeeds.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/Filter.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/Fonts.grrc/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/German.lproj
/usr/lib/GNUstep/Applications/Grr.app/Resources/Grr-Icon-Anim1.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/Grr-Icon-Anim2.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/Grr-Icon-Anim3.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/Grr-Icon-NoConnection.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/Grr-Icon.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/Grr.desktop
/usr/lib/GNUstep/Applications/Grr.app/Resources/HTML-Entities.plist
/usr/lib/GNUstep/Applications/Grr.app/Resources/Info-gnustep.plist
/usr/lib/GNUstep/Applications/Grr.app/Resources/Link.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/PlainArticle.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/Proxy.grrc/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/Searching.grrc/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/Star.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/SubscriptionPanel.grrc/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/TreeDatabase.grrdb/Resources
/usr/lib/GNUstep/Applications/Grr.app/Resources/WebProxy.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/arrowDown.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/arrowLeft.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/arrowRight.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/arrowUp.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/blue-badge-left.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/blue-badge-mid.tiff
/usr/lib/GNUstep/Applications/Grr.app/Resources/blue-badge-right.tiff