lib/rules/computed-property-spacing.js
function reportRequiredBeginningSpace( node, token ) {
    context.report({
      node: node,
      loc: token.loc.start,
      message: 'A space is required after \'' + token.value + '\'',
      fix: function( fixer ) {
        return fixer.insertTextAfter( token, ' ' );
      }
    });
  }
function reportRequiredBeginningSpace( node, token ) {
    context.report({
      node: node,
      loc: token.loc.start,
      message: 'A space is required after \'' + token.value + '\'',
      fix: function( fixer ) {
        return fixer.insertTextAfter( token, ' ' );
      }
    });
  }
Reports that there should be a space after the first token
@param {ASTNode} node - The node to report in the event of an error.
@param {Token} token - The token to use for the report.
@returns {void}