I really like in the syntax proposed by Jim the fact that the single quote " is retconned to allow several lines, it seems the easiest thing to do if we just want to introduce a multi-lines literal string.
This has already been rejected, because it doesn't address the main use cases -- most multi-line snippets still want to have quotes in them (SQL, JSON, XML, etc), and thus would still have to be escaped.
I disagree with Brian that we should try to have an intelligent algorithm to remove the blank spaces
Thought that's not actually what I proposed. What I've proposed is to start with a choice of "1" or "1a", the latter being "1 with intelligent reflow." So your preference for 1 over 1a is recorded!