Tiny JSON patch for single-quotes in strings

Hi guys,

You rails core people just keep on churning out cool stuff, so I keep staying on edge rails :wink: There's a small bug in the JSON decode method that causes a ParseError if there is an odd number of single quotes inside a quoted string. See ticket #8425. I forgot to put [TINY] in the title. It's a very tiny change.


I think it's best to use the "tiny" keyword. [TINY] in the summary is
non-standard. And thanks for the patch.