Rename Activity events for more clarity

Summary: Changed “Finding dependencies” and “Building Module Graph” to “Transforming modules” and “Initializing Packager” for more clarity

Reviewed By: matryoshcow

Differential Revision: D3950811

fbshipit-source-id: 7a2e655ef7e1655244ce427e7adc8c1e5afa7329

react-packager/src/Bundler/index.js

@@ -365,11 +365,12 @@ class Bundler {
     finalizeBundle = noop,
   }) {
     const findEventId = Activity.startEvent(
-      'Finding dependencies',
+      'Transforming modules',
       null,
       {
         telemetric: true,
         entryPoint: entryFile,
+        details: dev ? 'dev' : 'prod',
       },
     );
     const modulesByName = Object.create(null);

react-packager/src/node-haste/index.js

@@ -92,7 +92,7 @@ class DependencyGraph {
 
     const {activity} = this._opts;
     const depGraphActivity = activity.startEvent(
-      'Building Dependency Graph',
+      'Initializing Packager',
       null,
       {
         telemetric: true,