Whitespace fixes. From YOMURA Masanori in private mail.

While here, fix one Op argument.

usr.sbin/pvctxctl/pvctxctl.8

@@ -22,7 +22,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\" $NetBSD: pvctxctl.8,v 1.5 2002/02/02 01:38:54 wiz Exp $
+.\" $NetBSD: pvctxctl.8,v 1.6 2005/09/11 23:43:27 wiz Exp $
 .\"
 .Dd December 29, 1997
 .Dt PVCTXCTL 8
@@ -33,20 +33,15 @@
 .Sh SYNOPSIS
 .Nm pvctxctl
 .Ar interface
-.Oo
-.Op vpi :
-.Ar vci
-.Oc
+.Op Oo vpi : Oc Ns Ar vci
 .Nm pvctxctl
 .Ar interface
-.Op vpi :
-.Ar vci
+.Oo vpi : Oc Ns Ar vci
 .Op Fl p Ar pcr
 .Op Fl b Ar max-bandwidth
 .Oo
 .Fl j
-.Op vpi :
-.Ar vci
+.Oo vpi : Oc Ns Ar vci
 .Oc
 .Op Fl n
 .Sh DESCRIPTION
@@ -84,7 +79,7 @@ parameter is a string of the form
 .Dq name unit ,
 for example,
 .Dq en0 .
-.It Op vpi: Ar vci
+.It Oo vpi: Oc Ns Ar vci
 The VC number to which the shaper is assigned.
 When the VPI number is omitted, VPI number 0 is
 assumed.