[riot-notifications] [RIOT] boards/samr21-xpro: define serial port for OS X (#3912)

[Hauke Petersen]

ACK and go.

---
Reply to this email directly or view it on GitHub:
https://github.com/RIOT-OS/RIOT/pull/3912#issuecomment-142973284
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.riot-os.org/pipermail/notifications/attachments/20150924/a3884030/attachment.html>