btl/base: fix misc memory leaks

as reported by Coverity as CIDs 71818 71819

opal/mca/btl/base/btl_base_select.c

@@ -13,9 +13,9 @@
  * Copyright (c) 2007      Sun Microsystems, Inc.  All rights reserved.
  * Copyright (c) 2012-2014 Los Alamos National Security, LLC.
  *                         All rights reserved.
- * Copyright (c) 2014      Research Organization for Information Science
+ * Copyright (c) 2014-2015 Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
- * Copyright (c) 2014 Cisco Systems, Inc.  All rights reserved.
+ * Copyright (c) 2014      Cisco Systems, Inc.  All rights reserved.
  * $COPYRIGHT$
  * 
  * Additional copyrights may follow
@@ -152,6 +152,13 @@ int mca_btl_base_select(bool enable_progress_threads,
         }
     }
 
+    if (NULL != include) {
+        opal_argv_free(include);
+    }
+    if (NULL != exclude) {
+        opal_argv_free(exclude);
+    }
+
     /* Finished querying all components.  Check for the bozo case. */
 
     if (0 == opal_list_get_size(&mca_btl_base_modules_initialized)) {