dpctl: Fix memory leak in dpctl_dump_flows()

Goto label accurately to avoid memleak.

Fixes: a692410 ("dpctl: Expand the flow dump type filter")
Cc: Gavi Teitz <gavi@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: William Tu <u9012063@gmail.com>

lib/dpctl.c

@@ -1031,7 +1031,7 @@ dpctl_dump_flows(int argc, const char *argv[], struct dpctl_params *dpctl_p)
     memset(&dump_types, 0, sizeof dump_types);
     error = populate_dump_types(types_list, &dump_types, dpctl_p);
     if (error) {
-        goto out_free;
+        goto out_dpifclose;
     }
     determine_dpif_flow_dump_types(&dump_types, &dpif_dump_types);