Properly format NAME subsection of zfs/zpool subcommands

Use proper names (i.e. zfs-allow and zpool-add) in NAME subsections
of zfs/zpool subcommands instead of current "pretty-printed" ones as
makewhatis utilities (or some implementations of it, namely the one
from mandoc suite used in FreeBSD) look not only at the document title
but also in NAME subsection, adding zfs(8)/zpool(8) to search results
which is not correct. (Common sense and other utilities splitting
subcommands in multiple man pages, e.g. git, do the same.)

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: xtouqh <xtouqh@hotmail.com>
Closes #11086

man/man8/zfs-send.8

@@ -34,43 +34,43 @@
 .Dt ZFS-SEND 8
 .Os
 .Sh NAME
-.Nm zfs Ns Pf - Cm send
+.Nm zfs-send
 .Nd Generate a send stream, which may be of a filesystem, and may be incremental from a bookmark.
 .Sh SYNOPSIS
-.Nm
+.Nm zfs
 .Cm send
 .Op Fl DLPRbcehnpvw
 .Op Oo Fl I Ns | Ns Fl i Oc Ar snapshot
 .Ar snapshot
-.Nm
+.Nm zfs
 .Cm send
 .Op Fl DLPRcenpvw
 .Op Fl i Ar snapshot Ns | Ns Ar bookmark
 .Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot
-.Nm
+.Nm zfs
 .Cm send
 .Fl -redact Ar redaction_bookmark
 .Op Fl DLPcenpv
 .br
 .Op Fl i Ar snapshot Ns | Ns Ar bookmark
 .Ar snapshot
-.Nm
+.Nm zfs
 .Cm send
 .Op Fl Penv
 .Fl t
 .Ar receive_resume_token
-.Nm
+.Nm zfs
 .Cm send
 .Op Fl Pnv
 .Fl S Ar filesystem
-.Nm
+.Nm zfs
 .Cm redact
 .Ar snapshot redaction_bookmark
 .Ar redaction_snapshot Ns ...
 .Sh DESCRIPTION
 .Bl -tag -width ""
 .It Xo
-.Nm
+.Nm zfs
 .Cm send
 .Op Fl DLPRbcehnpvw
 .Op Oo Fl I Ns | Ns Fl i Oc Ar snapshot
@@ -266,7 +266,7 @@ The format of the stream is committed.
 You will be able to receive your streams on future versions of ZFS.
 .El
 .It Xo
-.Nm
+.Nm zfs
 .Cm send
 .Op Fl DLPRcenpvw
 .Op Fl i Ar snapshot Ns | Ns Ar bookmark
@@ -391,7 +391,7 @@ Print verbose information about the stream package generated.
 This information includes a per-second report of how much data has been sent.
 .El
 .It Xo
-.Nm
+.Nm zfs
 .Cm send
 .Fl -redact Ar redaction_bookmark
 .Op Fl DLPcenpv
@@ -482,7 +482,7 @@ These are stored with the redacted snapshot, and are used to detect and
 correctly handle the cases above.  Note that for technical reasons, raw sends
 and redacted sends cannot be combined at this time.
 .It Xo
-.Nm
+.Nm zfs
 .Cm send
 .Op Fl Penv
 .Fl t
@@ -497,7 +497,7 @@ See the documentation for
 .Sy zfs receive -s
 for more details.
 .It Xo
-.Nm
+.Nm zfs
 .Cm send
 .Op Fl Pnv
 .Op Fl i Ar snapshot Ns | Ns Ar bookmark
@@ -514,7 +514,7 @@ always use the last fully received snapshot as the incremental source if it
 exists.
 .El
 .It Xo
-.Nm
+.Nm zfs
 .Cm redact
 .Ar snapshot redaction_bookmark
 .Ar redaction_snapshot Ns ...