virsh: Fix help for net-port-delete

Apparently a copy/paste error. The net-port-delete help string was in
fact from net-port-dumpxml.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1747826Signed-off-by: NJonathon Jongsma <jjongsma@redhat.com>

tools/virsh-network.c

@@ -1593,10 +1593,10 @@ cmdNetworkPortDumpXML(vshControl *ctl, const vshCmd *cmd)
  */
 static const vshCmdInfo info_network_port_delete[] = {
     {.name = "help",
-     .data = N_("network port information in XML")
+     .data = N_("delete the specified network port")
     },
     {.name = "desc",
-     .data = N_("Output the network port information as an XML dump to stdout.")
+     .data = N_("Delete the specified network port.")
     },
     {.name = NULL}
 };