rename fgetline.{3,c} -> fgetln.{3,c}
4.4BSD snapshot (revision 8.1); add 1993 to copyright
bcopy => memcpy (safe in all these cases) for ANSI (sigh)
interface change: size parameter is required, keep newline;no longer returns a C string (callers must use care)
the C library should only use bcopy, so programs don't load both!
new stdio