Bug: 467378 - Char escape in DatabaseMessageStore

Adding a missed "=?" in SQLite query for getArrivedRowCount

Signed-off-by: James Sutton <james.sutton@uk.ibm.com>

Author: jpwsutton

org.eclipse.paho.android.service/org.eclipse.paho.android.service/src/main/java/org/eclipse/paho/android/service/DatabaseMessageStore.java

@@ -210,7 +210,7 @@ private int getArrivedRowCount(String clientHandle) {
         String[] projection = {
                 MqttServiceConstants.MESSAGE_ID,
         };
-  		String selection =  MqttServiceConstants.CLIENT_HANDLE;
+  		String selection =  MqttServiceConstants.CLIENT_HANDLE + "=?";
         String[] selectionArgs = new String[1];
         selectionArgs[0] = clientHandle;
 		Cursor c = db.query(