Structs starting with `b' in bsd4-4

• bcdinfo netccitt/pk_subr.c:612
• bdevsw sys/conf.h:40
• bind_args kern/uipc_syscalls.c:89
• bitslice netccitt/llc_var.h:89
• blah netiso/xebec/test_def.h:2
• bpf_d net/bpfdesc.h:46
• bpf_hdr net/bpf.h:129
• bpf_if net/bpfdesc.h:87
• bpf_insn net/bpf.h:220
• bpf_program net/bpf.h:57
• bpf_stat net/bpf.h:65
• bpf_version net/bpf.h:81
• bt_bad sys/dkbad.h:59
• buf conf/param.c:114