Find & replace newlines or whitespace with Vim
If you're looking to collapse lines via a find/replace in Vim, you probably need to kill both whitespace and newlines. Use \_s to match against both. Here's the situation where I just now made use of this:
%dt
%label Name
To remove the %label here, select the range in visual mode, type s/\_s*%label//g, and you'll get:
%dt Name
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