Reduce logcat spew when checking packager status

Summary: public

The common case is to hit an error when the server isn't running. We shouldn't spew a stack trace for it.

Reviewed By: foghina

Differential Revision: D2685706

fb-gh-sync-id: d230af170b92a05452f04a90f23172f15e62dce6

ReactAndroid/src/main/java/com/facebook/react/devsupport/DevServerHelper.java

@@ -217,7 +217,10 @@ public class DevServerHelper {
         new Callback() {
           @Override
           public void onFailure(Request request, IOException e) {
-            FLog.e(ReactConstants.TAG, "IOException requesting status from packager", e);
+            FLog.w(
+                ReactConstants.TAG,
+                "The packager does not seem to be running as we got an IOException requesting " +
+                    "its status: " + e.getMessage());
             callback.onPackagerStatusFetched(false);
           }