Fixed synopsis:

- don't declare nonexistent function sleep().
- don't include <sys/errno.h> explicitly.

sleep() should be nuked some more, e.g., this man page should not be
named after a nonexistent function.

share/man/man9/sleep.9

@@ -23,7 +23,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $Id: sleep.9,v 1.7 1997/02/22 13:26:26 peter Exp $
+.\" $Id: sleep.9,v 1.8 1997/04/09 05:39:32 mpp Exp $
 .\" "
 .Dd April 3, 1996
 .Os
@@ -37,15 +37,12 @@
 .Fd #include <sys/param.h>
 .Fd #include <sys/systm.h>
 .Fd #include <sys/proc.h>
-.Fd #include <sys/errno.h>
 .Ft int
 .Fn tsleep "void *ident" "int priority" "char *wmesg" "int timo"
 .Ft void
 .Fn wakeup "void *ident"
 .Ft void
 .Fn wakeup_one "void *ident"
-.Ft int
-.Fn sleep "void *ident" "int priority"
 .Sh DESCRIPTION
 The functions
 .Fn tsleep