Computed method names in class definitions

[digiwano]

See here:

% cat foo.js
const mySym = Symbol('some-symbol');
class Foo {
  [mySym]() {
    return true;
  }
}

% esformatter foo.js

const mySym = Symbol('some-symbol');
class Foo {
  [ mySym]() {
    return true;
  }
}

I haven't been able to find a configuration setting which will disable that space, but even if there is a setting to change this it seems like an odd default behavior