O_TRUNC          1011 htags/htags.c  	op = open(to, O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0775);
O_TRUNC            57 libdb/db.c     	 O_RDWR | O_SHLOCK | O_TRUNC)
O_TRUNC           270 libutil/dbop.c 		rw = O_RDWR|O_CREAT|O_TRUNC;