We're supposed to read a string and not an int ...

This commit was SVN r20421.

orte/mca/oob/tcp/oob_tcp.c

@@ -338,7 +338,7 @@ int mca_oob_tcp_component_open(void)
                            0,
                            &mca_oob_tcp_component.disable_family);
 #if OPAL_WANT_IPV6
-    mca_base_param_reg_int(&mca_oob_tcp_component.super.oob_base,
+    mca_base_param_reg_string(&mca_oob_tcp_component.super.oob_base,
                               "static_ports_v6", "Static ports for daemons and procs (IPv6)",
                               false, false,
                               NULL,