trash some old leftover macros and replace them with -mdoc macros

src/lib/libc/crypt/arc4random.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: arc4random.3,v 1.9 1999/06/30 01:40:18 deraadt Exp $
+.\" $OpenBSD: arc4random.3,v 1.10 1999/07/04 18:59:42 aaron Exp $
 .\" Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
 .\" All rights reserved.
 .\"
@@ -50,10 +50,7 @@ The
 .Fn arc4random 
 function uses the key stream generator employed by the
 arc4 cipher, which uses 8*8 8 bit S-Boxes. The S-Boxes
-can be in about 
-.if t 2\u\s71700\s10\d
-.if n (2**1700)
-states.
+can be in about (2**1700) states.
 .Pp
 The
 .Fn arc4random_stir

src/lib/libc/stdlib/random.3

@@ -29,7 +29,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: random.3,v 1.8 1999/06/29 18:36:23 aaron Exp $
+.\"	$OpenBSD: random.3,v 1.9 1999/07/04 18:59:43 aaron Exp $
 .\"
 .Dd April 19, 1991
 .Dt RANDOM 3
@@ -56,9 +56,7 @@ The
 function
 uses a non-linear additive feedback random number generator employing a
 default table of size 31 long integers to return successive pseudo-random
-numbers in the range from 0 to
-.if t 2\u\s731\s10\d\(mi1.
-.if n (2**31)\(mi1.
+numbers in the range from 0 to (2**31)\-1.
 The maximum value returned by
 .Fn random
 is
@@ -66,8 +64,7 @@ is
 (as defined by the header file
 .Aq Pa limits.h ) .
 The period of this random number generator is very large, approximately
-.if t 16\(mu(2\u\s731\s10\d\(mi1).
-.if n 16*((2**31)\(mi1).
+16*((2**31)\-1.
 .Pp
 The
 .Fn random Ns / Fn srandom
@@ -148,9 +145,7 @@ is that the size of the state array does not have to be remembered after
 it is initialized.
 .Pp
 With 256 bytes of state information, the period of the random number
-generator is greater than
-.if t 2\u\s769\s10\d,
-.if n 2**69
+generator is greater than 2**69
 which should be sufficient for most purposes.
 .Sh AUTHOR
 Earl T. Cohen

src/lib/libc/stdlib/tsearch.3

@@ -23,7 +23,7 @@
 .\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 .\" ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: tsearch.3,v 1.5 1999/06/29 18:36:24 aaron Exp $
+.\"	$OpenBSD: tsearch.3,v 1.6 1999/07/04 18:59:43 aaron Exp $
 .\"
 .Dd June 15, 1997
 .Dt TSEARCH 3
@@ -84,7 +84,7 @@ will be adjusted.
 .Pp
 .Fn twalk
 walks the binary search tree rooted in
-.fa root
+.Fa root
 and calls the function
 .Fa action
 on each node.