Update fmt (#6514)
Update fmt (#6514)

Merge pull request 6514
getandpost/jekyll.github.io,chrisfinazzo/jekyll,jekyll/jekyll,chrisfinazzo/jekyll,Strangehill/jekyll,tillgrallert/jekyll,jaybe-jekyll/jekyll,x-way/jekyll,fulldecent/jekyll,gencer/jekyll,getandpost/jekyll.github.io,gencer/jekyll,chrisfinazzo/jekyll,jekyll/jekyll,fulldecent/jekyll,Strangehill/jekyll,Strangehill/jekyll,x-way/jekyll,jaybe-jekyll/jekyll,tillgrallert/jekyll,ryanshaw/jekyll,jaybe-jekyll/jekyll,gencer/jekyll,chrisfinazzo/jekyll,gencer/jekyll,tillgrallert/jekyll,x-way/jekyll,tillgrallert/jekyll,fulldecent/jekyll,getandpost/jekyll.github.io,yhironaka/yhironaka.github.io,ryanshaw/jekyll,gencer/jekyll,jaybe-jekyll/jekyll,Strangehill/jekyll,jekyll/jekyll,ryanshaw/jekyll,ryanshaw/jekyll,jekyll/jekyll,Strangehill/jekyll,tillgrallert/jekyll,x-way/jekyll,fulldecent/jekyll