Working in a cross-platform environment, I always use LF-only line endings. Contrary to common belief, this also works really well on Windows. However, setting “Project Line Feed” to \n in the Projucer before creating a new project gave me \r\n line endings in both the PluginEditor and PluginProcessor .cpp and .h files.
This seems wrong to me. I even have .editor config in place, which is also set to \n only, but the Projucer ignored that too.