network: fix indentation in networkBuildDnsmasqArgv

This block was inadvertently added with the wrong indentation.

src/network/bridge_driver.c

@@ -621,7 +621,6 @@ networkBuildDnsmasqArgv(virNetworkObjPtr network,
             if (dctx->addnhostsfile->nhosts)
                 virCommandAddArgPair(cmd, "--addn-hosts",
                                      dctx->addnhostsfile->path);
-
             dnsmasqContextFree(dctx);
         }