support utf-8 conversion in ADSI meterpreter code

Using enum_ad_computers I get the following error. Looks like it dislikes the Windows Server(R) in a comment?

msf post(enum_ad_computers) > run -j
[*] Post module running as background job
[*] Resolving IP addresses...
[-] Post failed: ActiveRecord::StatementInvalid PG::CharacterNotInRepertoire: ERROR:  invalid byte sequence for encoding "UTF8": 0xae
: INSERT INTO "hosts" ("address", "arch", "comm", "comments", "created_at", "cred_count", "exploit_attempt_count", "host_detail_count", "info", "mac", "name", "note_count", "os_flavor", "os_lang", "os_name", "os_sp", "purpose", "scope", "service_count", "state", "updated_at", "virtual_host", "vuln_count", "workspace_id") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23, $24) RETURNING "id"
[-] Call stack:
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/postgresql_adapter.rb:1176:in `get_last_result'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/postgresql_adapter.rb:1176:in `exec_cache'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/postgresql_adapter.rb:661:in `block in exec_query'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract_adapter.rb:280:in `block in log'
[-]   /var/lib/gems/1.9.1/gems/activesupport-3.2.14/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract_adapter.rb:275:in `log'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/postgresql_adapter.rb:659:in `exec_query'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/database_statements.rb:63:in `exec_insert'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/database_statements.rb:90:in `insert'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/query_cache.rb:14:in `insert'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/relation.rb:66:in `insert'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/persistence.rb:367:in `create'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/timestamp.rb:58:in `create'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/callbacks.rb:268:in `block in create'
[-]   /var/lib/gems/1.9.1/gems/activesupport-3.2.14/lib/active_support/callbacks.rb:403:in `_run__4264701056075533851__create__172958994904926905__callbacks'
[-]   /var/lib/gems/1.9.1/gems/activesupport-3.2.14/lib/active_support/callbacks.rb:405:in `__run_callback'
[-]   /var/lib/gems/1.9.1/gems/activesupport-3.2.14/lib/active_support/callbacks.rb:385:in `_run_create_callbacks'
[-]   /var/lib/gems/1.9.1/gems/activesupport-3.2.14/lib/active_support/callbacks.rb:81:in `run_callbacks'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/callbacks.rb:268:in `create'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/persistence.rb:348:in `create_or_update'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/callbacks.rb:264:in `block in create_or_update'
[-]   /var/lib/gems/1.9.1/gems/activesupport-3.2.14/lib/active_support/callbacks.rb:425:in `_run__4264701056075533851__save__172958994904926905__callbacks'
[-]   /var/lib/gems/1.9.1/gems/activesupport-3.2.14/lib/active_support/callbacks.rb:405:in `__run_callback'
[-]   /var/lib/gems/1.9.1/gems/activesupport-3.2.14/lib/active_support/callbacks.rb:385:in `_run_save_callbacks'
[-]   /var/lib/gems/1.9.1/gems/activesupport-3.2.14/lib/active_support/callbacks.rb:81:in `run_callbacks'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/callbacks.rb:264:in `create_or_update'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/persistence.rb:104:in `save!'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/validations.rb:56:in `save!'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/attribute_methods/dirty.rb:33:in `save!'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/transactions.rb:264:in `block in save!'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/transactions.rb:313:in `block in with_transaction_returning_status'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/transactions.rb:208:in `transaction'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/transactions.rb:311:in `with_transaction_returning_status'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/transactions.rb:264:in `save!'
[-]   /opt/metasploit/msf3/lib/msf/core/db.rb:377:in `block in report_host'
[-]   /var/lib/gems/1.9.1/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:129:in `with_connection'
[-]   /opt/metasploit/msf3/lib/msf/core/db.rb:323:in `report_host'
[-]   /opt/metasploit/msf3/lib/msf/core/auxiliary/report.rb:58:in `report_host'
[-]   /opt/metasploit/msf3/modules/post/windows/gather/enum_ad_computers.rb:138:in `block (2 levels) in run'
[-]   /opt/metasploit/msf3/modules/post/windows/gather/enum_ad_computers.rb:134:in `each'
[-]   /opt/metasploit/msf3/modules/post/windows/gather/enum_ad_computers.rb:134:in `block in run'
[-]   /opt/metasploit/msf3/modules/post/windows/gather/enum_ad_computers.rb:133:in `each'
[-]   /opt/metasploit/msf3/modules/post/windows/gather/enum_ad_computers.rb:133:in `run'