Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/common/cmd_itest.c b/common/cmd_itest.c
index 10d53a0..29f8076 100644
--- a/common/cmd_itest.c
+++ b/common/cmd_itest.c
@@ -2,7 +2,7 @@
  * (C) Copyright 2003
  * Tait Electronics Limited, Christchurch, New Zealand
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*