virsh.pod: Improve native configuration format doc

Add native guest format of BSD hypervisor and VMware/ESX. Quote native
guest format of domxml-from-native for domxml-to-native.
Reviewed-by: NCole Robinson <crobinso@redhat.com>
Signed-off-by: NHan Han <hhan@redhat.com>

tools/virsh.pod

@@ -1607,21 +1607,17 @@ Convert the file I<config> in the native guest configuration format
 named by I<format> to a domain XML format. For QEMU/KVM hypervisor,
 the I<format> argument must be B<qemu-argv>. For Xen hypervisor, the
 I<format> argument may be B<xen-xm>, B<xen-xl>, or B<xen-sxpr>. For
-LXC hypervisor, the I<format> argument must be B<lxc-tools>.
+LXC hypervisor, the I<format> argument must be B<lxc-tools>. For
+VMware/ESX hypervisor, the I<format> argument must be B<vmware-vmx>.
+For the Bhyve hypervisor, the I<format> argument must be B<bhyve-argv>.
 
 =item B<domxml-to-native> I<format>
 { [I<--xml>] I<xml> | I<--domain> I<domain-name-or-id-or-uuid> }
 
 Convert the file I<xml> into domain XML format or convert an existing
 I<--domain> to the native guest configuration format named by I<format>.
-The I<xml> and I<--domain> arguments are mutually exclusive.
-
-For the QEMU/KVM hypervisor, the I<format> argument must be B<qemu-argv>.
-
-For the Xen hypervisor, the I<format> argument may be B<xen-xm>, B<xen-xl>,
-or B<xen-sxpr>.
-
-For the LXC hypervisor, the I<format> argument must be B<lxc-tools>.
+The I<xml> and I<--domain> arguments are mutually exclusive. For the types
+of I<format> argument, refer to B<domxml-from-native>.
 
 =item B<dump> I<domain> I<corefilepath> [I<--bypass-cache>]
 { [I<--live>] | [I<--crash>] | [I<--reset>] } [I<--verbose>] [I<--memory-only>]