Character start string literals now preserved to minimize text diff

And just like that to v1.0.1 ...

Majorly minimizes final remaining (functionally indistinguishable)
text diff imposed upon characters that weren't actually melted by
the given rules. Actually, it completely eliminates it. Only known
case where a file containing no changed characters will change in
text diff now is if it misses an EOL at the end of it; one will be
inserted.