virsh: Rename --precopy-bandwidth migration option

The (pre-copy) bandwidth was historically the only bandwidth we
supported and thus it is called just "bandwidth" in all other places.
E.g., virsh migrate-setspeed or in the migration typed parameter name.
Let's make the new option for virsh migrate consistent.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
Reviewed-by: NDaniel P. Berrangé <berrange@redhat.com>

tools/virsh-domain.c

@@ -10587,9 +10587,9 @@ static const vshCmdOptDef opts_migrate[] = {
      .type = VSH_OT_INT,
      .help = N_("number of connections for parallel migration")
     },
-    {.name = "precopy-bandwidth",
+    {.name = "bandwidth",
      .type = VSH_OT_INT,
-     .help = N_("pre-copy migration bandwidth limit in MiB/s")
+     .help = N_("migration bandwidth limit in MiB/s")
     },
     {.name = NULL}
 };
@@ -10805,7 +10805,7 @@ doMigrate(void *opaque)
             goto save_error;
     }
 
-    if ((rv = vshCommandOptULongLong(ctl, cmd, "precopy-bandwidth", &ullOpt)) < 0) {
+    if ((rv = vshCommandOptULongLong(ctl, cmd, "bandwidth", &ullOpt)) < 0) {
         goto out;
     } else if (rv > 0) {
         if (virTypedParamsAddULLong(&params, &nparams, &maxparams,

tools/virsh.pod

@@ -2153,7 +2153,7 @@ I<domain> I<desturi> [I<migrateuri>] [I<graphicsuri>] [I<listen-address>] [I<dna
 [I<auto-converge-increment>] [I<--persistent-xml> B<file>] [I<--tls>]
 [I<--postcopy-bandwidth> B<bandwidth>]
 [I<--parallel> [I<--parallel-connections> B<connections>]]
-[I<--precopy-bandwidth> B<bandwidth>]
+[I<--bandwidth> B<bandwidth>]
 
 Migrate domain to another host.  Add I<--live> for live migration; <--p2p>
 for peer-2-peer migration; I<--direct> for direct migration; or I<--tunnelled>
@@ -2186,7 +2186,7 @@ I<--postcopy-after-precopy> along with I<--postcopy> to let libvirt
 automatically switch to post-copy after the first pass of pre-copy is finished.
 The maximum bandwidth consumed during the post-copy phase may be limited using
 I<--postcopy-bandwidth>. The maximum bandwidth consumed during the pre-copy phase
-may be limited using I<--precopy-bandwidth>.
+may be limited using I<--bandwidth>.
 
 I<--auto-converge> forces convergence during live migration. The initial
 guest CPU throttling rate can be set with I<auto-converge-initial>. If the