added one space between "className" and "onClick"

src/client/js/components/Admin/Common/AdminUpdateButtonRow.jsx

@@ -10,7 +10,7 @@ class AdminUpdateButtonRow extends React.PureComponent {
     return (
       <div className="row my-3">
         <div className="col-xs-offset-4 col-xs-5">
-           <button type="button" className="radius-btn btn btn-primary"onClick={this.props.onClick} disabled={this.props.disabled}>{ t('Update') }</button>
+          <button type="button" className="radius-btn btn btn-primary" onClick={this.props.onClick} disabled={this.props.disabled}>{ t('Update') }</button>
         </div>
       </div>
     );