Fix typos in more efficient array copying.
Fix typos in more efficient array copying.

yforrest/polymer,mgiuffrida/polymer,exlerdesigns/polymer,jordanyaker/polymer,gronke/polymer,MartinsThiago/polymer,Endika/polymer,tjsavage/polymer,gronke/polymer,yforrest/polymer,tjsavage/polymer,MartinsThiago/polymer,ikeagold/polymer,yforrest/polymer,mgiuffrida/polymer,Polymer/polymer,MartinsThiago/polymer,exlerdesigns/polymer,mgiuffrida/polymer,JeremybellEU/polymer,Polymer/polymer,ktiedt/polymer,gazal-k/polymer,jordanyaker/polymer,Endika/polymer,JeremybellEU/polymer,gazal-k/polymer,ikeagold/polymer,exlerdesigns/polymer,gazal-k/polymer,tjsavage/polymer,gronke/polymer,ktiedt/polymer,Polymer/polymer,ikeagold/polymer,JeremybellEU/polymer,ktiedt/polymer,Endika/polymer,jordanyaker/polymer