Remove single-space hard sentence breaks. These degrade the quality

of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.

3 files changed, 62 insertions, 31 deletions

diff --git a/usr.sbin/mrouted/map-mbone.8 b/usr.sbin/mrouted/map-mbone.8
index 63027b8b4dac..d7c693828b17 100644
--- a/usr.sbin/mrouted/map-mbone.8
+++ b/usr.sbin/mrouted/map-mbone.8
@@ -25,24 +25,30 @@ is the localhost.
 .Pp
 .Nm Map-mbone
 traverses neighboring multicast routers by sending the ASK_NEIGHBORS IGMP
-message to the multicast starting_router. If this multicast router responds,
+message to the multicast starting_router.
+If this multicast router responds,
 the version number and a list of their neighboring multicast router addresses is
-part of that response. If the responding router has recent multicast version
+part of that response.
+If the responding router has recent multicast version
 number, then 
 .Nm
 requests additional information such as metrics, thresholds, and flags from the
-multicast router. For each new occurrence of neighboring multicast router in 
+multicast router.
+For each new occurrence of neighboring multicast router in 
 the reply and provided the flooding option has been selected, then 
 .Nm
-asks each of this multicast router for a list of neighbors. This search
+asks each of this multicast router for a list of neighbors.
+This search
 for unique routers will continue until no new neighboring multicast routers
 are reported.
 .Pp
 The following options are available:
 .Bl -tag -width indent
 .It Fl d
-Set the debug level. When the debug level is greater than the
-default value of 0, addition debugging messages are printed. Regardless of
+Set the debug level.
+When the debug level is greater than the
+default value of 0, addition debugging messages are printed.
+Regardless of
 the debug level, an error condition, will always write an error message and will
 cause 
 .Nm
@@ -58,7 +64,8 @@ all level 2 messages plus notifications of all packet
 timeouts are printed to stderr.
 .El
 .It Fl f
-Set flooding option. Flooding allows the recursive search
+Set flooding option.
+Flooding allows the recursive search
 of neighboring multicast routers and is enable by default when starting_router
 is not used.
 .It Fl g
@@ -66,10 +73,12 @@ Set graphing in GraphEd format.
 .It Fl n
 Disable the DNS lookup for the multicast routers names.
 .It Fl r Ar retry_count
-Set the neighbor query retry limit. Default is 1 retry.
+Set the neighbor query retry limit.
+Default is 1 retry.
 .It Fl t Ar timeout_count
 Set the number of seconds to wait for a neighbor query
-reply before retrying. Default timeout is 2 seconds.
+reply before retrying.
+Default timeout is 2 seconds.
 .El
 .Sh IMPORTANT NOTE
 .Nm Map-mbone
diff --git a/usr.sbin/mrouted/mrinfo.8 b/usr.sbin/mrouted/mrinfo.8
index 3a56910de85b..c8b5c01e8b9f 100644
--- a/usr.sbin/mrouted/mrinfo.8
+++ b/usr.sbin/mrouted/mrinfo.8
@@ -18,20 +18,25 @@ attempts to display the configuration information from the multicast router
 .Ar multicast_router .
 .Pp
 .Nm Mrinfo
-uses the ASK_NEIGHBORS IGMP message to the specified multicast router. If this
+uses the ASK_NEIGHBORS IGMP message to the specified multicast router.
+If this
 multicast router responds, the version number and a list of their neighboring
-multicast router addresses is part of that response. If the responding router
+multicast router addresses is part of that response.
+If the responding router
 has a recent multicast version number, then 
 .Nm
 requests additional information such as metrics, thresholds, and flags from the
-multicast router. Once the specified multicast router responds, the
+multicast router.
+Once the specified multicast router responds, the
 configuration is displayed to the standard output.
 .Pp
 The following options are available:
 .Bl -tag -width indent
 .It Fl d Ar debug_level
-Set the debug level. When the debug level is greater than the
-default value of 0, addition debugging messages are printed. Regardless of
+Set the debug level.
+When the debug level is greater than the
+default value of 0, addition debugging messages are printed.
+Regardless of
 the debug level, an error condition, will always write an error message and will
 cause 
 .Nm
@@ -47,10 +52,12 @@ all level 2 messages plus notifications of all packet
 timeouts are printed to stderr.
 .El
 .It Fl r Ar retry_count
-Set the neighbor query retry limit. Default is 3 retries.
+Set the neighbor query retry limit.
+Default is 3 retries.
 .It Fl t Ar timeout_count
 Set the number of seconds to wait for a neighbor query
-reply. Default timeout is 4 seconds.
+reply.
+Default timeout is 4 seconds.
 .El
 .Sh SAMPLE OUTPUT
 .nf
@@ -63,8 +70,10 @@ reply. Default timeout is 4 seconds.
 .fi
 .Pp
 For each neighbor of the queried multicast router, the IP of the queried router
-is displayed, followed by the IP and name of the neighbor. In square brackets
-the metric (cost of connection), the treashold (multicast ttl) is displayed. If
+is displayed, followed by the IP and name of the neighbor.
+In square brackets
+the metric (cost of connection), the treashold (multicast ttl) is displayed.
+If
 the queried multicast router has a newer version number, the type (tunnel,
 srcrt) and status (disabled, down) of the connection is displayed.
 .Sh IMPORTANT NOTE
diff --git a/usr.sbin/mrouted/mrouted.8 b/usr.sbin/mrouted/mrouted.8
index 2aad223fd446..1e5645207398 100644
--- a/usr.sbin/mrouted/mrouted.8
+++ b/usr.sbin/mrouted/mrouted.8
@@ -23,12 +23,15 @@ datagram forwarding algorithm called Reverse Path Multicasting.
 .Pp
 .Nm Mrouted 
 forwards a multicast datagram along a shortest (reverse) path tree
-rooted at the subnet on which the datagram originates. The multicast
+rooted at the subnet on which the datagram originates.
+The multicast
 delivery tree may be thought of as a broadcast delivery tree that has
 been pruned back so that it does not extend beyond those subnetworks
-that have members of the destination group. Hence, datagrams
+that have members of the destination group.
+Hence, datagrams
 are not forwarded along those branches which have no listeners of the
-multicast group. The IP time-to-live of a multicast datagram can be
+multicast group.
+The IP time-to-live of a multicast datagram can be
 used to limit the range of multicast datagrams.
 .Pp
 In order to support multicasting among subnets that are separated by (unicast)
@@ -74,7 +77,8 @@ in order to perform multicast forwarding.
 The following options are available:
 .Bl -tag -width indent
 .It Fl c Ar config_file
-Specify an alternative file for configuration commands. Default is
+Specify an alternative file for configuration commands.
+Default is
 .Pa /etc/mrouted.conf .
 .It Fl d Op Ar debug_level
 If no
@@ -291,7 +295,8 @@ traffic.  It defaults 0 (unlimited).
 .It boundary Ar "boundary-name|scoped-addr/mask-len"
 The boundary option allows an interface
 to be configured as an administrative boundary for the specified
-scoped address. Packets belonging to this address will not
+scoped address.
+Packets belonging to this address will not
 be forwarded on a scoped interface.  The boundary option accepts either
 a name or a boundary spec.  This command may be specified several times
 on an interface in order to describe multiple boundaries.
@@ -493,8 +498,10 @@ instance of
 .Nm
 is the one responsible for sending periodic group
 membership queries on the vif 0 and vif 1 subnets, as indicated by the
-"querier" flags. The list of boundaries indicate the scoped addresses on that
-interface. A count of the no. of incoming and outgoing packets is also
+"querier" flags.
+The list of boundaries indicate the scoped addresses on that
+interface.
+A count of the no. of incoming and outgoing packets is also
 shown at each interface.
 .Pp
 Associated with each subnet from which a multicast datagram can originate
@@ -507,7 +514,8 @@ origin, and a multicast datagram from that origin will be forwarded on that
 outgoing vif only if there are members of the destination group on that leaf.
 .Pp
 .Nm Mrouted 
-also maintains a copy of the kernel forwarding cache table. Entries
+also maintains a copy of the kernel forwarding cache table.
+Entries
 are created and deleted by 
 .Nm mrouted .
 .Pp
@@ -545,16 +553,21 @@ amount of time until the upstream prune will time out.
 The 'Ivif' field indicates the
 incoming vif for multicast packets from that origin.  Each router also
 maintains a record of the number of prunes received from neighboring
-routers for a particular source and group. If there are no members of
+routers for a particular source and group.
+If there are no members of
 a multicast group on any downward link of the multicast tree for a
-subnet, a prune message is sent to the upstream router. They are
+subnet, a prune message is sent to the upstream router.
+They are
 indicated by a "P" after the vif number.
 .Pp
 The Forwvifs field shows the
 interfaces along which datagrams belonging to the source-group are
-forwarded. A "p" indicates that no datagrams are being forwarded along
-that interface. An unlisted interface is a leaf subnet with no
-members of the particular group on that subnet. A "b" on an interface
+forwarded.
+A "p" indicates that no datagrams are being forwarded along
+that interface.
+An unlisted interface is a leaf subnet with no
+members of the particular group on that subnet.
+A "b" on an interface
 indicates that it is a boundary interface, i.e. traffic will not be
 forwarded on the scoped address on that interface.
 .Pp