port/devaudio.c		1995/0119		Created.
		1995/0214
		1995/0215
		1995/0216
		1995/0217
		1995/0221
		1995/0804
		1996/0223
		1996/0315
		1996/1024
		1996/1025
		1997/0327
		1997/0408
		1998/0317
		1998/0319		Change dev read and write to use vlong offset.
		1998/0327		Formatting edits.
		1998/0331		Whitespace edit.
		1998/0512		Whitespace edit.
		1998/0603		Bug fix: flush final partial buffer on close of write fd.
		1998/0624		Formatting edit.
		1998/0825		Bug fix: print format.
		1999/0219
		1999/0320
		1999/0504
		1999/1005
		1999/1015
		1999/1122
		2000/0308
		2000/0407
		2001/0503
		2001/0526
		2001/0527
		2001/1013
		2001/1016
		2001/1017
		2001/1018
		2001/1019
		2001/1117
		2001/1121
		2002/0109		Add devshutdown.
		2002/0412
		2002/0414
		2002/0523
		2003/0301
		2003/0406