macOS: Don't fail if we had nothing to kill
macOS: Don't fail if we had nothing to kill

itchio/itch,itchio/itchio-app,itchio/itchio-app,itchio/itch,itchio/itchio-app,itchio/itch,itchio/itch,itchio/itch,itchio/itch,leafo/itchio-app,leafo/itchio-app,leafo/itchio-app