Nits.
 [jmk] --rw-rw-r-- M 845139 glenda sys 2933 Dec  6 09:48 sys/man/3/audio
	/n/sourcesdump/2005/1206/plan9/sys/man/3/audio:75,81 - 
	/n/sourcesdump/2005/1207/plan9/sys/man/3/audio:75,81
	  .RI ` source
	  .IR value '.
	  Valid sources depend on the particular audio device,
	- though all devices have a
	+ though all devices have an
	  .B audio
	  stereo source, which controls the output volume from the D/A converter
	  connected to