Fix javadoc for folder has_children.

Change-Id: Ib33f86fb23e4a8d5383a4ef00c06f766619acf99
diff --git a/src/com/android/mail/providers/UIProvider.java b/src/com/android/mail/providers/UIProvider.java
index 3ffa4c5..a4ab157 100644
--- a/src/com/android/mail/providers/UIProvider.java
+++ b/src/com/android/mail/providers/UIProvider.java
@@ -182,7 +182,7 @@
          */
         public static String CAPABILITIES = "capabilities";
         /**
-         * This boolean column represents whether or not this folder has any
+         * This int column represents whether or not this folder has any
          * child folders.
          */
         public static String HAS_CHILDREN = "hasChildren";