lib: improve spelling and grammar in comment

PR-URL: #31026
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Gireesh Punathil <[email protected]>

Author: datatypevoid

lib/events.js

@@ -145,8 +145,8 @@ EventEmitter.init = function(opts) {
     }
     this[kCapture] = Boolean(opts.captureRejections);
   } else {
-    // Assigning it directly a prototype lookup, as it slighly expensive
-    // and it sits in a very sensitive hot path.
+    // Assigning the kCapture property directly saves an expensive
+    // prototype lookup in a very sensitive hot path.
     this[kCapture] = EventEmitter.prototype[kCapture];
   }
 };