Bug#1071480: libldap: sends some IPv6 addresses as server name

[Elliott Mitchell]

Seems there were two bugs in #1070033.  The part for OpenLDAP is pretty
simple.  When detecting an IPv6 address (via ':' in the string),
the function `ldap_int_tls_connect()` triggers a `break;`, but this
requires `numeric=1` to still be in effect.  Since IPv6 addresses are
hexadecimal, this isn't always true.

Patch attached.  Given how small it is, any license acceptable to the
Debian project is acceptable to me.  I'll let the maintainer forward it
to the OpenLDAP project.


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