Feature request #2869
[PATCH] Small Fixes
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Attached is a patch that fixes a spelling error I discovered in the comments (it's not huge, just annoying). I also made an adjustment to diagram_overlay to cleanup and leave if the text is empty. Originally a similar check was at the end of the method, and I just moved it up to the top just to get it out of the way quickly since there was no point to do all the extras if it wasn't necessary.