[dts] [PATCH] fix bug that multi test case arguments not coverted into list

[Yong Liu]

From: Marvin Liu <yong.liu at intel.com>

Signed-off-by: Marvin Liu <yong.liu at intel.com>

diff --git a/framework/main.py b/framework/main.py
index e9b84a0..de49e82 100755
--- a/framework/main.py
+++ b/framework/main.py
@@ -107,7 +107,7 @@ parser.add_argument('--suite-dir',
                     help='Test suite directory where test suites will be imported')
 
 parser.add_argument('-t', '--test-cases',
-                    nargs='+',
+                    action='append',
                     help='executes only the followings test cases')
 
 parser.add_argument('-d', '--dir',
-- 
1.9.3