scripts/unit-test.py: Fix an indent issue

The indent is incorrect and is fixed by autopep8

Signed-off-by: Lei YU <yulei.sh@bytedance.com>
Change-Id: I2d91c2bd3c32e2fc495eca137406fe234726a105
diff --git a/scripts/unit-test.py b/scripts/unit-test.py
index ceed920..aaa61dc 100755
--- a/scripts/unit-test.py
+++ b/scripts/unit-test.py
@@ -394,7 +394,8 @@
             '--cppcheck-build-dir=cppcheck-temp',
         )
     except subprocess.CalledProcessError:
-      print("cppcheck found errors")
+        print("cppcheck found errors")
+
 
 def is_valgrind_safe():
     """