add myself(oh) to the calendar

Reported by: McKusick
Approved by: Manu (mentor)
Differential Revision: https://reviews.freebsd.org/D44408

usr.bin/calendar/calendars/calendar.freebsd

@@ -281,6 +281,7 @@
 07/04	Jake Freeland <[email protected]> born in St. Paul, Minnesota, United States, 2003
 07/05	Olivier Cochard-Labbe <[email protected]> born in Brest, France, 1977
 07/05	Sergey Kandaurov <[email protected]> born in Gubkin, Russian Federation, 1985
+07/06	Oskar Holmlund <[email protected]> born in Solleftea, Sweden, 1981
 07/07	Andrew Thompson <[email protected]> born in Lower Hutt, Wellington, New Zealand, 1979
 07/07	Maxime Henrion <[email protected]> born in Metz, France, 1981
 07/07	George Reid <[email protected]> born in Frimley, Hampshire, United Kingdom, 1983