Use new FragmentManager APIs

Change-Id: I31a862f131c58dbe482573fee177d934fa1e4710
diff --git a/src/com/android/contacts/JoinContactActivity.java b/src/com/android/contacts/JoinContactActivity.java
index 8bae422..ea48763 100644
--- a/src/com/android/contacts/JoinContactActivity.java
+++ b/src/com/android/contacts/JoinContactActivity.java
@@ -91,7 +91,7 @@
             }
         });
 
-        FragmentTransaction transaction = openFragmentTransaction();
+        FragmentTransaction transaction = getFragmentManager().openTransaction();
         transaction.add(android.R.id.content, mListFragment);
         transaction.commit();
     }