Unneeded %Q Cop doesn't deal with escape codes

[mipearson]

Example during CSV output testing:

%Q(sep=,\r\nAd,Brand\r\n1,"Tre""k"\r\n)

will trigger the cop, even though writing this will quotes ends up with a backslashed mess:

"sep=,\r\nAd,Brand\r\n1,\"Tre\"\"k\"\r\n"

[mipearson]

Just realised that this may be a dup of #1112

[jonas054]

@mipearson You're right. That should not be reported as an offense.

I'll fix it. But I don't think it's a duplicate, so we keep both issues open.