use awk instead of newish sh features

src/etc/etc.mvme68k/MAKEDEV

@@ -31,7 +31,7 @@
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 #
-#	$Id: MAKEDEV,v 1.3 1995/11/07 22:50:58 deraadt Exp $
+#	$Id: MAKEDEV,v 1.4 1995/11/16 02:54:44 deraadt Exp $
 #
 # Device "make" file.  Valid arguments:
 #	all	makes all known devices, including local devices,
@@ -286,13 +286,11 @@ pty*)
 	case $class in
 	0|1|2|3|4)
 		umask 0
-		(i=0; while [ $i -lt 16 ]; do
-			eval `printf "rm -f tty%s%x; mknod tty%s%x c 4 %d; \
-			    rm -f pty%s%x; mknod pty%s%x c 5 %d" $name $i \
-			    $name $i $offset $name $i $name $i $offset`
-			offset=$(($offset+1))
-			i=$(($i+1))
-			done)
+		eval `echo $offset $name | awk ' { b=$1; n=$2 } END {
+			for (i = 0; i < 16; i++)
+				printf("mknod tty%s%x c 4 %d; \
+					mknod pty%s%x c 5 %d; ", \
+					n, i, b+i, n, i, b+i); }'`
 		umask 77
 		;;
 	esac