migration tweak

Author: japgolly

doc/changelog/1.4.0.md

@@ -75,8 +75,11 @@ find . -type f -name '*.scala' -exec perl -pi -e '
   # Replace .(async|delay|delayMs) on Callback
   s/([. ])((?:async|delay|delayMs) *\([^()]+\))/$1$2$1asCallbackToFuture/;
   s/asCallbackToFuture[. ]void/toCallback/;
-  
+
+  # Reusability move to core
   s/Reusability.shouldComponentUpdateWithOverlay/ReusabilityOverlay.install/;
+  s/\bextra\.Reusability\b/Reusability/g;
+  s/\bextra\.Reusable\b/Reusable/g;
 
 ' {} +
 ```