Variables starting with `o' in bsd/sys

• oid_fmt bsd/sys/sysctl.h:162
• opv_desc_ops bsd/sys/vnode.h:407
• opve_impl bsd/sys/vnode.h:402
• order bsd/sys/gmon.h:126
• osrelease bsd/sys/sysctl.h:640
• ostype bsd/sys/sysctl.h:641