Ruby 1.9 hashes

Rubyists talk about being cutting edge but how many are using 1.9 in production? Time to convert those verbose 1.8 hashes in to symbolic, succinct 1.9 beauties!

Input

{
  :a => 1,
  :b => 2,
  :c => 3
}

Output

{
  a: 1,
  b: 2,
  c: 3
}