Fix warning: instance variable @ldap_controls not initialized
Fix warning: instance variable @ldap_controls not initialized


astockwell/ruby-net-ldap,cloudvolumes/ruby-net-ldap,astockwell/ruby-net-ldap,bkeepers/ruby-net-ldap,cloudvolumes/ruby-net-ldap,javanthropus/ruby-net-ldap,javanthropus/ruby-net-ldap,bkeepers/ruby-net-ldap