Add argument types for bio(4) ioctl() commands
Fix indenting for bio(4) and pci(4) ioctl()s.
Use Fa for vscsi(4) ioctl() commands.
audio(4) has nothing to do with <string.h>
Dv blah , Dv bleh
is more simply written as
Dv blah , bleh
espie points out <string.h> is needed for the AUDIO_INITINFO() macro