could someone commit this?  hardly seems worth a PR.

Index: unistd.h
===================================================================
RCS file: /cvsroot/basesrc/include/unistd.h,v
retrieving revision 1.87
diff -c -r1.87 unistd.h
*** unistd.h	2001/07/18 10:18:21	1.87
--- unistd.h	2001/07/29 20:34:53
***************
*** 303,309 ****
  #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
  int	 acct __P((const char *));
  int	 des_cipher __P((const char *, char *, long, int));
! int	 des_setkey __P((const char *key));
  void	 endusershell __P((void));
  int	 exect __P((const char *, char * const *, char * const *));
  int	 fchroot __P((int));
--- 303,309 ----
  #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
  int	 acct __P((const char *));
  int	 des_cipher __P((const char *, char *, long, int));
! int	 des_setkey __P((const char *));
  void	 endusershell __P((void));
  int	 exect __P((const char *, char * const *, char * const *));
  int	 fchroot __P((int));