Module Name:	src
Committed By:	kleink
Date:		Tue Mar  9 20:33:22 UTC 1999

Modified Files:
	src/include: unistd.h
	src/lib/libc/sys: brk.2
Log Message:
brk(2) actually returns an int indicating success (0) or failure (-1).  Also,
change its argument to void *.  (Both XSH5).