Fixed bug that wipes out the phone numbers in the call log.

Bug 2131204
diff --git a/src/com/android/contacts/RecentCallsListActivity.java b/src/com/android/contacts/RecentCallsListActivity.java
index f3b418a..decce7b 100644
--- a/src/com/android/contacts/RecentCallsListActivity.java
+++ b/src/com/android/contacts/RecentCallsListActivity.java
@@ -660,7 +660,7 @@
      * If the given String object is null or empty, return an empty String.
      */
     private String formatPhoneNumber(String number) {
-        if (!TextUtils.isEmpty(number)) {
+        if (TextUtils.isEmpty(number)) {
             return "";
         }