[Fix] review feedback/suggestions

Author: sjarva

lib/rules/no-unknown-property.js

@@ -237,12 +237,11 @@ function getDOMPropertyNames(context) {
   const ALL_DOM_PROPERTY_NAMES = DOM_PROPERTY_NAMES_TWO_WORDS.concat(DOM_PROPERTY_NAMES_ONE_WORD);
   // this was removed in React v16.1+, see https://github.com/facebook/react/pull/10823
   if (!testReactVersion(context, '>= 16.1.0')) {
-    return ALL_DOM_PROPERTY_NAMES.concat(['allowTransparency']);
+    return ALL_DOM_PROPERTY_NAMES.concat('allowTransparency');
   }
   // these were added in React v16.4.0, see https://reactjs.org/blog/2018/05/23/react-v-16-4.html and https://github.com/facebook/react/pull/12507
   if (testReactVersion(context, '>= 16.4.0')) {
-    return ALL_DOM_PROPERTY_NAMES.concat(['onPointerDown', 'onPointerMove', 'onPointerUp', 'onPointerCancel', 'onGotPointerCapture', 'onLostPointerCapture',
-      'onPointerEnter', 'onPointerLeave', 'onPointerOver', 'onPointerOut']);
+    return ALL_DOM_PROPERTY_NAMES.concat('onPointerDown', 'onPointerMove', 'onPointerUp', 'onPointerCancel', 'onGotPointerCapture', 'onLostPointerCapture', 'onPointerEnter', 'onPointerLeave', 'onPointerOver', 'onPointerOut');
   }
   return ALL_DOM_PROPERTY_NAMES;
 }