Dear Minkyu Kang,
In message BANLkTikg-X2+=qpNrgGy2yu2ThQ6vQdfWQ@mail.gmail.com you wrote:
diff --git a/boards.cfg b/boards.cfg index 554e06c..01edb79 100644 --- a/boards.cfg +++ b/boards.cfg
...
Please use space instead of tab.
No!
Indentation / vertical alignment SHALL be done using TABs!
Best regards,
Wolfgang Denk