In your google blog/blogspot you may see like below:
You have seen here a dashed/dotted line before your attribution.
When you already delete attribution ( to delete attribution see How to remove attribution gadget from google blogger/blogspot )
Then these line looked very odd like below:
So perhaps you want to delete this.I show you below how to delete this:
step 1:Go to Dashboard >Template>Edit HTML
step 2: Find out the
border-top: $(footer.bevel) dashed #bbbbbb;
You can easily find these line by typing .footer-outer in your brower find tool (in mozilla press Ctrl+F for find tool)
step 3:Now simply delete these found line and save the template changing.
Now view your blog and you must see that dashed line had gone forever.