Line 'em up!

It can be so hard to keep everything neatly lined-up. Somebody clearly hasn't bothered here. Tidy it up, please!

Input

foo {
    a   => "a",
    bc  => "bc",
    def => "def",
    ghij => "ghij",
    k => "k",
    lmn => "lmn",
    opqrst => "opqrst",
    uvw => "uvw",
    xyz => "xyz",
}

Output

foo {
    a       => "a",
    bc      => "bc",
    def     => "def",
    ghij    => "ghij",
    k       => "k",
    lmn     => "lmn",
    opqrst  => "opqrst",
    uvw     => "uvw",
    xyz     => "xyz",
}