We are now wanting tooltip descriptions to not include a terminal period unless they are multi-sentence (so internally containing a period). #125460 removed the automatic addition of the terminal period, but now we have to manually add them back where needed. This PR removes the error message shown if these items end in period, and then adds one for all RNA descriptions that are multi-sentence. Pull Request: https://projects.blender.org/blender/blender/pulls/125507