Add virshAllocpagesPagesizeCompleter to opts_freepages.

Signed-off-by: NRoland Schulz <schullzroll@gmail.com>

tools/virsh-host.c

@@ -278,6 +278,7 @@ static const vshCmdOptDef opts_freepages[] = {
     },
     {.name = "pagesize",
      .type = VSH_OT_INT,
+     .completer = virshAllocpagesPagesizeCompleter,
      .help = N_("page size (in kibibytes)")
     },
     {.name = "all",