netlink.7: Line in table is too long

Fix warning from "man ..." ("nroff -ww ..."):

    nroff: netlink.7: warning: around line 195:
    table wider than line width

Horizontal line incorporated into table.
No right adjustment of text blocks in tables.

See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=673875

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man7/netlink.7

@@ -169,14 +169,12 @@ appropriate manual pages for that, for example,
 .BR rtnetlink (7)
 for
 .BR NETLINK_ROUTE .
-
-Standard flag bits in
-.I nlmsg_flags
-.br
----------------------------------
 .TS
 tab(:);
+l s
 lB l.
+Standard flag bits in \fInlmsg_flags\fP
+_
 NLM_F_REQUEST:Must be set on all request messages.
 NLM_F_MULTI:T{
 The message is part of a multipart message terminated by
@@ -185,13 +183,16 @@ T}
 NLM_F_ACK:Request for an acknowledgment on success.
 NLM_F_ECHO:Echo this request.
 .TE
-
-Additional flag bits for GET requests
-.br
--------------------------------------
+.ad
+.sp 1
+.\" No right adustment for text blocks in tables
+.na
 .TS
 tab(:);
+l s
 lB l.
+Additional flag bits for GET requests
+_
 NLM_F_ROOT:Return the complete table instead of a single entry.
 NLM_F_MATCH:T{
 Return all entries matching criteria passed in message content.
@@ -199,27 +200,32 @@ Not implemented yet.
 T}
 .\" FIXME NLM_F_ATOMIC is not used any more?
 NLM_F_ATOMIC:Return an atomic snapshot of the table.
-NLM_F_DUMP:Convenience macro; equivalent to (NLM_F_ROOT|NLM_F_MATCH).
+NLM_F_DUMP:T{
+Convenience macro; equivalent to (NLM_F_ROOT|NLM_F_MATCH).
+T}
 .TE
-
+.ad
+.sp 1
 Note that
 .B NLM_F_ATOMIC
 requires the
 .B CAP_NET_ADMIN
 capability or an effective UID of 0.
 
-Additional flag bits for NEW requests
-.br
--------------------------------------
+.na
 .TS
 tab(:);
+l s
 lB l.
+Additional flag bits for NEW requests
+_
 NLM_F_REPLACE:Replace existing matching object.
 NLM_F_EXCL:Don't replace if the object already exists.
 NLM_F_CREATE:Create object if it doesn't already exist.
 NLM_F_APPEND:Add to the end of the object list.
 .TE
-
+.ad
+.sp 1
 .I nlmsg_seq
 and
 .I nlmsg_pid